From patchwork Mon Oct 9 18:33:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 731848 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5022BCD6122 for ; Mon, 9 Oct 2023 18:34:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377964AbjJISeT (ORCPT ); Mon, 9 Oct 2023 14:34:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37696 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377192AbjJISeS (ORCPT ); Mon, 9 Oct 2023 14:34:18 -0400 Received: from mx.skole.hr (mx2.hosting.skole.hr [161.53.165.186]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ED0F6A6; Mon, 9 Oct 2023 11:34:16 -0700 (PDT) Received: from mx2.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id C4A6C84B0E; Mon, 9 Oct 2023 20:34:14 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Mon, 09 Oct 2023 20:33:58 +0200 Subject: [PATCH RFT v7 1/6] ARM: pxa: Convert Spitz OHCI to GPIO descriptors MIME-Version: 1.0 Message-Id: <20231009-pxa-gpio-v7-1-c8f5f403e856@skole.hr> References: <20231009-pxa-gpio-v7-0-c8f5f403e856@skole.hr> In-Reply-To: <20231009-pxa-gpio-v7-0-c8f5f403e856@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@vger.kernel.org, =?utf-8?q?Duje_Miha?= =?utf-8?q?novi=C4=87?= X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=2590; i=duje.mihanovic@skole.hr; h=from:subject:message-id; bh=jWL4QZTf4q1nSMZnAZbdL0TeeJev2PtE9jP/v9y0QG0=; b=owEBbQKS/ZANAwAIAZoRnrBCLZbhAcsmYgBlJEeb8Mqi/WmO31Qsudy2XA1+EdKJJ3bTZShCD t2TKOe26fCJAjMEAAEIAB0WIQRT351NnD/hEPs2LXiaEZ6wQi2W4QUCZSRHmwAKCRCaEZ6wQi2W 4frUEACRzelN55l+SDUpHL2V1saJ44bio5LAoX1GqGdfFcaFFylwFMlveGz+74W6Y0P1xwux5sd cJavRQ1pXjInkkdDOAz2EPr8QndBM70OrsoungTdJa1RcPOtuMVHZvfM6NiWMsnuN82vqx2Nbud FTAddUtNYCV0GmYSwACnqmXc1RyMr6o0uMaHMPZoS39PIyTHjlaVyGHGQ/Z9QGTnjWs62PiXbHm yZaHWD2B4ftnugptVIcac5p3pIwz8rXC3OrUE+StJYhHn4LTlNThdh/6dHue0jc8ojVqpAMhfvM fGXvGqR9O5U2bRmKoE1VGekv5f3WA/8o14hfF6PFXi0n9jn+bBB4Qj1ON8pdGdJpfYMSahIG8La 03kx7e5GAeI2bC6XKUF4UcfVd0JSWJtpYIHveYYK46bluBKGXBds8w4zxuwvpILP/uMkTx+U3xk PA4DeC0onSvOpvhbExX1KbRR0jP1LyR5v8UdulPQnl9L4kdoIVP/f8axQB8YTczS2KtYgE8ZBh8 Yzxl2tYAO7xtcXSaEAOp+NV9zbTIARoxYCW7ru8WG8Uz/D+tnt/chHpTrFMsfAHgGIpvpfhA1Mx SfHfpD12ZjdWwegn8hXHRR/TSTTnuCZ5cjsdLeloHMNU/vNccL0NjhHMoqYIbdPrNjCa+e6v0Uk /H1V4k86R6eLW4g== X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Sharp's Spitz board still uses the legacy GPIO interface for controlling a GPIO pin related to the USB host controller. Convert this function to use the new GPIO descriptor interface. Reviewed-by: Linus Walleij Signed-off-by: Duje Mihanović --- arch/arm/mach-pxa/spitz.c | 13 ++++++------- drivers/usb/host/ohci-pxa27x.c | 5 +++++ 2 files changed, 11 insertions(+), 7 deletions(-) diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index cc691b199429..535e2b2e997b 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -649,23 +649,22 @@ static inline void spitz_mmc_init(void) {} * USB Host ******************************************************************************/ #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) +GPIO_LOOKUP_SINGLE(spitz_usb_host_gpio_table, "pxa27x-ohci", "gpio-pxa", + SPITZ_GPIO_USB_HOST, "usb-host", GPIO_ACTIVE_LOW); + static int spitz_ohci_init(struct device *dev) { - int err; - - err = gpio_request(SPITZ_GPIO_USB_HOST, "USB_HOST"); - if (err) - return err; + gpiod_add_lookup_table(&spitz_usb_host_gpio_table); /* Only Port 2 is connected, setup USB Port 2 Output Control Register */ UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE; - return gpio_direction_output(SPITZ_GPIO_USB_HOST, 1); + return 0; } static void spitz_ohci_exit(struct device *dev) { - gpio_free(SPITZ_GPIO_USB_HOST); + gpiod_remove_lookup_table(&spitz_usb_host_gpio_table); } static struct pxaohci_platform_data spitz_ohci_platform_data = { diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 357d9aee38a3..a809ba0bb25e 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -121,6 +121,7 @@ struct pxa27x_ohci { void __iomem *mmio_base; struct regulator *vbus[3]; bool vbus_enabled[3]; + struct gpio_desc *usb_host; }; #define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)(hcd_to_ohci(hcd)->priv) @@ -447,6 +448,10 @@ static int ohci_hcd_pxa27x_probe(struct platform_device *pdev) pxa_ohci = to_pxa27x_ohci(hcd); pxa_ohci->clk = usb_clk; pxa_ohci->mmio_base = (void __iomem *)hcd->regs; + pxa_ohci->usb_host = devm_gpiod_get_optional(&pdev->dev, "usb-host", GPIOD_OUT_LOW); + if (IS_ERR(pxa_ohci->usb_host)) + return dev_err_probe(&pdev->dev, PTR_ERR(pxa_ohci->usb_host), + "failed to get USB host GPIO\n"); for (i = 0; i < 3; ++i) { char name[6]; From patchwork Mon Oct 9 18:33:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 731359 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F05ADCD6125 for ; Mon, 9 Oct 2023 18:34:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378056AbjJISeU (ORCPT ); Mon, 9 Oct 2023 14:34:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37690 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377501AbjJISeS (ORCPT ); Mon, 9 Oct 2023 14:34:18 -0400 Received: from mx.skole.hr (mx2.hosting.skole.hr [161.53.165.186]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ECFA6A3; Mon, 9 Oct 2023 11:34:16 -0700 (PDT) Received: from mx2.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id 369F084A5E; Mon, 9 Oct 2023 20:34:15 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Mon, 09 Oct 2023 20:33:59 +0200 Subject: [PATCH RFT v7 2/6] ARM: pxa: Convert Spitz LEDs to GPIO descriptors MIME-Version: 1.0 Message-Id: <20231009-pxa-gpio-v7-2-c8f5f403e856@skole.hr> References: <20231009-pxa-gpio-v7-0-c8f5f403e856@skole.hr> In-Reply-To: <20231009-pxa-gpio-v7-0-c8f5f403e856@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@vger.kernel.org, =?utf-8?q?Duje_Miha?= =?utf-8?q?novi=C4=87?= X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1901; i=duje.mihanovic@skole.hr; h=from:subject:message-id; bh=1yohBJVEfo/Ind1Hy9PsJ4oqUarD4e31qtGoJ3pSoVs=; b=owEBbQKS/ZANAwAIAZoRnrBCLZbhAcsmYgBlJEebN4SaAkwbFMrouTWoLrPxDXVIwqGRBrDWP T7+X4lCGGSJAjMEAAEIAB0WIQRT351NnD/hEPs2LXiaEZ6wQi2W4QUCZSRHmwAKCRCaEZ6wQi2W 4YnTD/9TbKA78usjrLVWzYn9dLTIC4KdDQgikMTjRVQOAVbRYlss86P3CeKlsB5ZFqC0/TJHPrr fEWfYLaxdi2WeaDUqyVQRMxkAH2LB0NY6vdZD7qXi+gFhEhV5hhmAI0ePxcloR+iUXi75dM65W4 XR7TqoDRK8VWqOr4CEr/6SUnlzie2FgjMhWHZv8l8JwcZrWEVCEt0qpPh5//TGcbzcUT5MKrmaJ z4kS+/hSiY/vXVuZ2YfYA+jxk2kQ/u8sOZ8Dg+37uVYRJJaevxXWmT6jHIJng6BEkqp/VQnatfr kD5q/+dRRpxVDqkt09i13ejeCkG4IHv/VidcpJbccv2FKqdd8SMywmVxgLMrlstOxFuodl19vaX 3xahrJ/po+rZO87FFR7uC6H5mPOUSPRKZziGZZPx+RXv0RIy7hWgzVv6MKBf8rsdWngEm2LLkHx nNAF4IcXUoQXiYt2a8H2EGTaA37ccrKH6ZlpjfpnG0MDkQ9cTP+TvuifoveZ+32Yhh7AYTuSha+ /ZxRixBZUV49nvkwfJ8KyD7FLRaqqJNDZG1b5Sis2N9DhExqnWoKpZxzaKkIrJdN1nkQeTfiSKZ GfYYS256QOkH48AS0O9Fr+9YpTmOUthr9Pz/+GZO7zhYbMCCIw9ING02edmdxEWrh1dLNUV5khg zXFzN58cPTKJ36Q== X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Sharp's Spitz board still uses the legacy GPIO interface for configuring its two onboard LEDs. Convert them to use the GPIO descriptor interface. Reviewed-by: Linus Walleij Signed-off-by: Duje Mihanović --- arch/arm/mach-pxa/spitz.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 535e2b2e997b..29907abc4513 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -452,16 +452,25 @@ static inline void spitz_keys_init(void) {} * LEDs ******************************************************************************/ #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) +static struct gpiod_lookup_table spitz_led_gpio_table = { + .dev_id = "leds-gpio", + .table = { + GPIO_LOOKUP_IDX("pxa-gpio", SPITZ_GPIO_LED_ORANGE, NULL, 0, + GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("pxa-gpio", SPITZ_GPIO_LED_GREEN, NULL, 1, + GPIO_ACTIVE_HIGH), + { } + } +}; + static struct gpio_led spitz_gpio_leds[] = { { .name = "spitz:amber:charge", .default_trigger = "sharpsl-charge", - .gpio = SPITZ_GPIO_LED_ORANGE, }, { .name = "spitz:green:hddactivity", .default_trigger = "disk-activity", - .gpio = SPITZ_GPIO_LED_GREEN, }, }; @@ -478,9 +487,16 @@ static struct platform_device spitz_led_device = { }, }; +static struct gpio_descs *leds; + static void __init spitz_leds_init(void) { + gpiod_add_lookup_table(&spitz_led_gpio_table); platform_device_register(&spitz_led_device); + leds = gpiod_get_array_optional(&spitz_led_device.dev, + NULL, GPIOD_ASIS); + spitz_gpio_leds[0].gpiod = leds->desc[0]; + spitz_gpio_leds[1].gpiod = leds->desc[1]; } #else static inline void spitz_leds_init(void) {} From patchwork Mon Oct 9 18:34:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 731847 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1C1F6CD6128 for ; Mon, 9 Oct 2023 18:34:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378058AbjJISeV (ORCPT ); Mon, 9 Oct 2023 14:34:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37720 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377721AbjJISeT (ORCPT ); Mon, 9 Oct 2023 14:34:19 -0400 Received: from mx.skole.hr (mx1.hosting.skole.hr [161.53.165.185]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4438FAF; Mon, 9 Oct 2023 11:34:17 -0700 (PDT) Received: from mx1.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id D927D84C3E; Mon, 9 Oct 2023 20:34:15 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Mon, 09 Oct 2023 20:34:00 +0200 Subject: [PATCH RFT v7 3/6] ARM: pxa: Convert Spitz CF power control to GPIO descriptors MIME-Version: 1.0 Message-Id: <20231009-pxa-gpio-v7-3-c8f5f403e856@skole.hr> References: <20231009-pxa-gpio-v7-0-c8f5f403e856@skole.hr> In-Reply-To: <20231009-pxa-gpio-v7-0-c8f5f403e856@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@vger.kernel.org, =?utf-8?q?Duje_Miha?= =?utf-8?q?novi=C4=87?= , Bartosz Golaszewski X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=2281; i=duje.mihanovic@skole.hr; h=from:subject:message-id; bh=+fxcsarubc2tXSSH1K644VHfXQAJtw0ZRrtO0ziZod4=; b=owEBbQKS/ZANAwAIAZoRnrBCLZbhAcsmYgBlJEebBzCQ8D7a6o2IA9iJM6L4IKQvEJLF/EMXP D8/dTCglt+JAjMEAAEIAB0WIQRT351NnD/hEPs2LXiaEZ6wQi2W4QUCZSRHmwAKCRCaEZ6wQi2W 4W7nD/oDYI8OQRD1Xb/8LN/F2NAL5p3w4cjcV3gKEe69yyhOfsWRfhWuScix3/DvzARzdyQGoN4 7pLtVaz+giD3aR+FRcQzL5Wh2petHAporVzUTsKk3MxGx4wAZui7UnUAgwb0mF/Lie3xpeNkC3j K5nxi2Q5Xw9FDDN7AUuSAdCrEkUDzbRjX3ZBzad35xbYZ9+T83rm3Xo2TJMa07lkPYB06bFo49/ p9IdsgwYjevs8TWQxI4tHkuTQ0dgoVCqynJtR1w28S0TgYMQE9g1puhBjwqgkI9tg9RZtdv5CsQ nKMVlg4juTc7xfawDkPtexGwtU0OA09wXkxYTambLcXVcVnf2Cvzc/mcqYVE9vpXwENTCpFclYt uYjQ8ufCg7TQsmdokaVG01ZbxxcfjESE+Xp5GSrGn8uduC4ZCYIY3OtrUuuodLz1LN+ftYTVJlN gZYl5lrhe8RgOaAYLri+cp+VG7u6z8bPAEbOhMHheG0LKF4/mmbIJOuMnNNcmYn2nLNYH898UMb NwGnwR6g0CgnYSreN6kil9/SZ94KgP975Tya9dNXdapiSljTl2tkPdvzBfa+cffRIyXd7tDfwyw AqHp5gqMz4hr+lgM6RgM3xkI8+pNZ3VLPBkZ42Ly9Xve3RKbFBoB7Du8xpSNsmfDFL8KvXk9M1e Zh+8jJaWR9Q0dRQ== X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Sharp's Spitz board still uses the legacy GPIO interface for controlling the power supply to its CF and SD card slots. Convert it to use the GPIO descriptor interface. Acked-by: Linus Walleij Reviewed-by: Bartosz Golaszewski Signed-off-by: Duje Mihanović --- arch/arm/mach-pxa/spitz.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 29907abc4513..c8fc333c2017 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -133,6 +133,10 @@ static unsigned long spitz_pin_config[] __initdata = { * Scoop GPIO expander ******************************************************************************/ #if defined(CONFIG_SHARP_SCOOP) || defined(CONFIG_SHARP_SCOOP_MODULE) +GPIO_LOOKUP_SINGLE(spitz_card_pwr_ctrl_gpio_table, "pxa2xx-mci.0", + "sharp-scoop", SPITZ_GPIO_CF_POWER, "cf_power", + GPIO_ACTIVE_HIGH); + /* SCOOP Device #1 */ static struct resource spitz_scoop_1_resources[] = { [0] = { @@ -190,6 +194,7 @@ struct platform_device spitz_scoop_2_device = { static void __init spitz_scoop_init(void) { platform_device_register(&spitz_scoop_1_device); + gpiod_add_lookup_table(&spitz_card_pwr_ctrl_gpio_table); /* Akita doesn't have the second SCOOP chip */ if (!machine_is_akita()) @@ -201,9 +206,18 @@ static void __maybe_unused spitz_card_pwr_ctrl(uint8_t enable, uint8_t new_cpr) { unsigned short cpr; unsigned long flags; + struct gpio_desc *cf_power; + + cf_power = gpiod_get(&pxa_device_mci.dev, "cf_power", GPIOD_ASIS); + if (IS_ERR(cf_power)) { + dev_err(&pxa_device_mci.dev, + "failed to get power control GPIO with %ld\n", + PTR_ERR(cf_power)); + return; + } if (new_cpr & 0x7) { - gpio_set_value(SPITZ_GPIO_CF_POWER, 1); + gpiod_direction_output(cf_power, 1); mdelay(5); } @@ -222,8 +236,10 @@ static void __maybe_unused spitz_card_pwr_ctrl(uint8_t enable, uint8_t new_cpr) if (!(cpr & 0x7)) { mdelay(1); - gpio_set_value(SPITZ_GPIO_CF_POWER, 0); + gpiod_direction_output(cf_power, 0); } + + gpiod_put(cf_power); } #else From patchwork Mon Oct 9 18:34:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 731358 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0EFBCD612B for ; Mon, 9 Oct 2023 18:34:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378076AbjJISeW (ORCPT ); Mon, 9 Oct 2023 14:34:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37750 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1378047AbjJISeT (ORCPT ); Mon, 9 Oct 2023 14:34:19 -0400 Received: from mx.skole.hr (mx2.hosting.skole.hr [161.53.165.186]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 56BDAB0; Mon, 9 Oct 2023 11:34:18 -0700 (PDT) Received: from mx2.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id F13CA847A9; Mon, 9 Oct 2023 20:34:16 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Mon, 09 Oct 2023 20:34:01 +0200 Subject: [PATCH RFT v7 4/6] ARM: pxa: Convert reset driver to GPIO descriptors MIME-Version: 1.0 Message-Id: <20231009-pxa-gpio-v7-4-c8f5f403e856@skole.hr> References: <20231009-pxa-gpio-v7-0-c8f5f403e856@skole.hr> In-Reply-To: <20231009-pxa-gpio-v7-0-c8f5f403e856@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@vger.kernel.org, =?utf-8?q?Duje_Miha?= =?utf-8?q?novi=C4=87?= , Bartosz Golaszewski X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; 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a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org The PXA reset driver still uses the legacy GPIO interface for configuring and asserting the reset pin. Convert it to use the GPIO descriptor interface. Acked-by: Linus Walleij Reviewed-by: Bartosz Golaszewski Signed-off-by: Duje Mihanović --- arch/arm/mach-pxa/reset.c | 39 +++++++++++++-------------------------- arch/arm/mach-pxa/reset.h | 3 +-- arch/arm/mach-pxa/spitz.c | 6 +++++- 3 files changed, 19 insertions(+), 29 deletions(-) diff --git a/arch/arm/mach-pxa/reset.c b/arch/arm/mach-pxa/reset.c index 27293549f8ad..08bc104b9411 100644 --- a/arch/arm/mach-pxa/reset.c +++ b/arch/arm/mach-pxa/reset.c @@ -2,7 +2,7 @@ #include #include #include -#include +#include #include #include #include @@ -14,33 +14,20 @@ static void do_hw_reset(void); -static int reset_gpio = -1; +static struct gpio_desc *reset_gpio; -int init_gpio_reset(int gpio, int output, int level) +int init_gpio_reset(int output, int level) { - int rc; - - rc = gpio_request(gpio, "reset generator"); - if (rc) { - printk(KERN_ERR "Can't request reset_gpio\n"); - goto out; + reset_gpio = gpiod_get(NULL, "reset", GPIOD_ASIS); + if (IS_ERR(reset_gpio)) { + pr_err("Can't request reset_gpio: %pe\n", reset_gpio); + return PTR_ERR(reset_gpio); } if (output) - rc = gpio_direction_output(gpio, level); + return gpiod_direction_output(reset_gpio, level); else - rc = gpio_direction_input(gpio); - if (rc) { - printk(KERN_ERR "Can't configure reset_gpio\n"); - gpio_free(gpio); - goto out; - } - -out: - if (!rc) - reset_gpio = gpio; - - return rc; + return gpiod_direction_input(reset_gpio); } /* @@ -50,16 +37,16 @@ int init_gpio_reset(int gpio, int output, int level) */ static void do_gpio_reset(void) { - BUG_ON(reset_gpio == -1); + BUG_ON(IS_ERR(reset_gpio)); /* drive it low */ - gpio_direction_output(reset_gpio, 0); + gpiod_direction_output(reset_gpio, 0); mdelay(2); /* rising edge or drive high */ - gpio_set_value(reset_gpio, 1); + gpiod_set_value(reset_gpio, 1); mdelay(2); /* falling edge */ - gpio_set_value(reset_gpio, 0); + gpiod_set_value(reset_gpio, 0); /* give it some time */ mdelay(10); diff --git a/arch/arm/mach-pxa/reset.h b/arch/arm/mach-pxa/reset.h index 963dd190bc13..5864f61a0e94 100644 --- a/arch/arm/mach-pxa/reset.h +++ b/arch/arm/mach-pxa/reset.h @@ -13,10 +13,9 @@ extern void pxa_register_wdt(unsigned int reset_status); /** * init_gpio_reset() - register GPIO as reset generator - * @gpio: gpio nr * @output: set gpio as output instead of input during normal work * @level: output level */ -extern int init_gpio_reset(int gpio, int output, int level); +extern int init_gpio_reset(int output, int level); #endif /* __ASM_ARCH_RESET_H */ diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index c8fc333c2017..4b6360821396 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -1026,9 +1026,13 @@ static void spitz_restart(enum reboot_mode mode, const char *cmd) spitz_poweroff(); } +GPIO_LOOKUP_SINGLE(spitz_reset_gpio_table, NULL, "pxa-gpio", + SPITZ_GPIO_ON_RESET, "reset", GPIO_ACTIVE_HIGH); + static void __init spitz_init(void) { - init_gpio_reset(SPITZ_GPIO_ON_RESET, 1, 0); + gpiod_add_lookup_table(&spitz_reset_gpio_table); + init_gpio_reset(1, 0); pm_power_off = spitz_poweroff; PMCR = 0x00; From patchwork Mon Oct 9 18:34:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 731846 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 51826CD611E for ; Mon, 9 Oct 2023 18:34:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378120AbjJISed (ORCPT ); Mon, 9 Oct 2023 14:34:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37778 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1378066AbjJISeV (ORCPT ); Mon, 9 Oct 2023 14:34:21 -0400 Received: from mx.skole.hr (mx2.hosting.skole.hr [161.53.165.186]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C1B569C; Mon, 9 Oct 2023 11:34:20 -0700 (PDT) Received: from mx2.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id 65A1684FA3; Mon, 9 Oct 2023 20:34:19 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Mon, 09 Oct 2023 20:34:02 +0200 Subject: [PATCH RFT v7 5/6] ARM: pxa: Convert gumstix Bluetooth to GPIO descriptors MIME-Version: 1.0 Message-Id: <20231009-pxa-gpio-v7-5-c8f5f403e856@skole.hr> References: <20231009-pxa-gpio-v7-0-c8f5f403e856@skole.hr> In-Reply-To: <20231009-pxa-gpio-v7-0-c8f5f403e856@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@vger.kernel.org, =?utf-8?q?Duje_Miha?= =?utf-8?q?novi=C4=87?= , Bartosz Golaszewski X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; 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a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Gumstix still uses the legacy GPIO interface for resetting the Bluetooth device. Convert it to use the GPIO descriptor interface. Reviewed-by: Linus Walleij Reviewed-by: Bartosz Golaszewski Signed-off-by: Duje Mihanović --- arch/arm/mach-pxa/gumstix.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/arch/arm/mach-pxa/gumstix.c b/arch/arm/mach-pxa/gumstix.c index c9f0f62187bd..0bca6e2c80a9 100644 --- a/arch/arm/mach-pxa/gumstix.c +++ b/arch/arm/mach-pxa/gumstix.c @@ -20,8 +20,8 @@ #include #include #include +#include #include -#include #include #include @@ -129,6 +129,11 @@ static void gumstix_udc_init(void) #endif #ifdef CONFIG_BT +GPIO_LOOKUP_SINGLE(gumstix_bt_gpio_table, "pxa2xx-uart.1", "pxa-gpio", + GPIO_GUMSTIX_BTRESET, "BTRST", GPIO_ACTIVE_LOW); + +static struct gpio_desc *bt_reset; + /* Normally, the bootloader would have enabled this 32kHz clock but many ** boards still have u-boot 1.1.4 so we check if it has been turned on and ** if not, we turn it on with a warning message. */ @@ -153,24 +158,19 @@ static void gumstix_setup_bt_clock(void) static void __init gumstix_bluetooth_init(void) { - int err; + gpiod_add_lookup_table(&gumstix_bt_gpio_table); gumstix_setup_bt_clock(); - err = gpio_request(GPIO_GUMSTIX_BTRESET, "BTRST"); - if (err) { + bt_reset = gpiod_get(&pxa_device_btuart.dev, "BTRST", GPIOD_OUT_HIGH); + if (IS_ERR(bt_reset)) { pr_err("gumstix: failed request gpio for bluetooth reset\n"); return; } - err = gpio_direction_output(GPIO_GUMSTIX_BTRESET, 1); - if (err) { - pr_err("gumstix: can't reset bluetooth\n"); - return; - } - gpio_set_value(GPIO_GUMSTIX_BTRESET, 0); + gpiod_set_value(bt_reset, 1); udelay(100); - gpio_set_value(GPIO_GUMSTIX_BTRESET, 1); + gpiod_set_value(bt_reset, 0); } #else static void gumstix_bluetooth_init(void) From patchwork Mon Oct 9 18:34:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 731357 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B3249CD611E for ; Mon, 9 Oct 2023 18:34:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378055AbjJISeg (ORCPT ); Mon, 9 Oct 2023 14:34:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1378090AbjJISeY (ORCPT ); Mon, 9 Oct 2023 14:34:24 -0400 Received: from mx.skole.hr (mx1.hosting.skole.hr [161.53.165.185]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BE263A4; Mon, 9 Oct 2023 11:34:21 -0700 (PDT) Received: from mx1.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id 6460084F8D; Mon, 9 Oct 2023 20:34:20 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Mon, 09 Oct 2023 20:34:03 +0200 Subject: [PATCH RFT v7 6/6] input: ads7846: Move wait_for_sync() logic to driver MIME-Version: 1.0 Message-Id: <20231009-pxa-gpio-v7-6-c8f5f403e856@skole.hr> References: <20231009-pxa-gpio-v7-0-c8f5f403e856@skole.hr> In-Reply-To: <20231009-pxa-gpio-v7-0-c8f5f403e856@skole.hr> To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Alan Stern , Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Dmitry Torokhov , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-spi@vger.kernel.org, =?utf-8?q?Duje_Miha?= =?utf-8?q?novi=C4=87?= , Bartosz Golaszewski X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; 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a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org If this code is left in the board file, the sync GPIO would have to be separated into another lookup table during conversion to the GPIO descriptor API (which is also done in this patch). The only user of this code (Sharp Spitz) is also converted in this patch. Suggested-by: Linus Walleij Reviewed-by: Linus Walleij Acked-by: Mark Brown Reviewed-by: Bartosz Golaszewski Signed-off-by: Duje Mihanović --- arch/arm/mach-pxa/spitz.c | 12 ++---------- drivers/input/touchscreen/ads7846.c | 22 +++++++++++++++------- include/linux/spi/ads7846.h | 1 - 3 files changed, 17 insertions(+), 18 deletions(-) diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 4b6360821396..44336a498699 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -522,22 +522,12 @@ static inline void spitz_leds_init(void) {} * SSP Devices ******************************************************************************/ #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE) -static void spitz_ads7846_wait_for_hsync(void) -{ - while (gpio_get_value(SPITZ_GPIO_HSYNC)) - cpu_relax(); - - while (!gpio_get_value(SPITZ_GPIO_HSYNC)) - cpu_relax(); -} - static struct ads7846_platform_data spitz_ads7846_info = { .model = 7846, .vref_delay_usecs = 100, .x_plate_ohms = 419, .y_plate_ohms = 486, .pressure_max = 1024, - .wait_for_sync = spitz_ads7846_wait_for_hsync, }; static struct gpiod_lookup_table spitz_ads7846_gpio_table = { @@ -545,6 +535,8 @@ static struct gpiod_lookup_table spitz_ads7846_gpio_table = { .table = { GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_TP_INT, "pendown", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_HSYNC, + "sync", GPIO_ACTIVE_LOW), { } }, }; diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index faea40dd66d0..139b0f3735d0 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -138,8 +138,7 @@ struct ads7846 { void *filter_data; int (*get_pendown_state)(void); struct gpio_desc *gpio_pendown; - - void (*wait_for_sync)(void); + struct gpio_desc *sync; }; enum ads7846_filter { @@ -636,9 +635,15 @@ static const struct attribute_group ads784x_attr_group = { }; /*--------------------------------------------------------------------------*/ - -static void null_wait_for_sync(void) +static void ads7846_wait_for_sync_gpio(struct ads7846 *ts) { + if (!ts->sync) + return; + while (!gpiod_get_value(ts->sync)) + cpu_relax(); + + while (gpiod_get_value(ts->sync)) + cpu_relax(); } static int ads7846_debounce_filter(void *ads, int data_idx, int *val) @@ -803,7 +808,7 @@ static void ads7846_read_state(struct ads7846 *ts) packet->last_cmd_idx = 0; while (true) { - ts->wait_for_sync(); + ads7846_wait_for_sync_gpio(ts); m = &ts->msg[msg_idx]; error = spi_sync(ts->spi, m); @@ -1261,8 +1266,6 @@ static int ads7846_probe(struct spi_device *spi) ts->penirq_recheck_delay_usecs = pdata->penirq_recheck_delay_usecs; - ts->wait_for_sync = pdata->wait_for_sync ? : null_wait_for_sync; - snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(dev)); snprintf(ts->name, sizeof(ts->name), "ADS%d Touchscreen", ts->model); @@ -1361,6 +1364,11 @@ static int ads7846_probe(struct spi_device *spi) if (err) return err; + ts->sync = devm_gpiod_get_optional(dev, "sync", GPIOD_IN); + if (IS_ERR(ts->sync)) + return dev_err_probe(dev, PTR_ERR(ts->sync), + "Failed to get sync GPIO"); + err = input_register_device(input_dev); if (err) return err; diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h index a04c1c34c344..fa7c4f119023 100644 --- a/include/linux/spi/ads7846.h +++ b/include/linux/spi/ads7846.h @@ -38,7 +38,6 @@ struct ads7846_platform_data { int gpio_pendown_debounce; /* platform specific debounce time for * the gpio_pendown */ int (*get_pendown_state)(void); - void (*wait_for_sync)(void); bool wakeup; unsigned long irq_flags; };