From patchwork Tue Apr 19 13:37:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 563516 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 A33A1C433F5 for ; Tue, 19 Apr 2022 13:41:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352515AbiDSNnU (ORCPT ); Tue, 19 Apr 2022 09:43:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36922 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352797AbiDSNmt (ORCPT ); Tue, 19 Apr 2022 09:42:49 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D6A6737BF6; Tue, 19 Apr 2022 06:40:02 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 7289CB81984; Tue, 19 Apr 2022 13:40:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EC917C385AE; Tue, 19 Apr 2022 13:39:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1650375600; bh=zW9EXgIwrT6e9se5HepqxV0X/iuSevgZPTTCehW8dB0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vHI0qQByX+c/7bvvFxsJDZg8Rk3Tmicri/PsugtdLSnLPggMHo6v2ctc+djyVus3N ui0ORHPtKfuy3WL0CumRMeBMzGHFm0UT+AP+rOrkATXgVT5fIgx6GErLIT2RrsL1Ec IZnzmJ8Dnh78euRrjLA7zfaPZJirZjn2+Ns06Fju3HP4p2eONLIleIC49bfNsZO5hd z5fjeKu5u4euWVq8Y01KsxQPT+uo12m/zcR2VMTIGaMdkSl1elVAK6Ja0/bpG1+umE 1lBMBmTCxncgj2s+VWFf/59RsmLfL2r5TKijMH37jw/Ys1Zb+TJYoC5rYrhTKbwaRm wVS3j8bExN97Q== From: Arnd Bergmann To: linux-omap@vger.kernel.org, tony@atomide.com, aaro.koskinen@iki.fi, jmkrzyszt@gmail.com Cc: Arnd Bergmann , Russell King , Paul Walmsley , Kevin Hilman , Peter Ujfalusi , Vinod Koul , Dmitry Torokhov , Ulf Hansson , Dominik Brodowski , Mark Brown , Felipe Balbi , Alan Stern , Lee Jones , Daniel Thompson , Jingoo Han , Helge Deller , Linus Walleij , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, dmaengine@vger.kernel.org, linux-input@vger.kernel.org, linux-mmc@vger.kernel.org, linux-serial@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org Subject: [PATCH 19/41] ARM: omap: dma: make usb support optional Date: Tue, 19 Apr 2022 15:37:01 +0200 Message-Id: <20220419133723.1394715-20-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220419133723.1394715-1-arnd@kernel.org> References: <20220419133723.1394715-1-arnd@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org From: Arnd Bergmann Most of the plat-omap/dma.c code is specific to the USB driver. Hide that code when it is not in use, to make it clearer which parts are actually still required. Signed-off-by: Arnd Bergmann Reviewed-by: Peter Ujfalusi --- arch/arm/plat-omap/dma.c | 45 +++++++++++++++++----------------- drivers/usb/gadget/udc/Kconfig | 2 +- include/linux/omap-dma.h | 5 +++- 3 files changed, 27 insertions(+), 25 deletions(-) diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 700ba9b600e7..b7757864d0aa 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -66,7 +66,6 @@ enum { DMA_CHAIN_STARTED, DMA_CHAIN_NOTSTARTED }; static struct omap_system_dma_plat_info *p; static struct omap_dma_dev_attr *d; -static void omap_clear_dma(int lch); static int enable_1510_mode; static u32 errata; @@ -90,19 +89,16 @@ static int omap_dma_reserve_channels; static DEFINE_SPINLOCK(dma_chan_lock); static struct omap_dma_lch *dma_chan; -static inline void disable_lnk(int lch); -static void omap_disable_channel_irq(int lch); -static inline void omap_enable_channel_irq(int lch); - -#ifdef CONFIG_ARCH_OMAP15XX -/* Returns 1 if the DMA module is in OMAP1510-compatible mode, 0 otherwise */ -static int omap_dma_in_1510_mode(void) +static inline void omap_disable_channel_irq(int lch) { - return enable_1510_mode; + /* disable channel interrupts */ + p->dma_write(0, CICR, lch); + /* Clear CSR */ + if (dma_omap1()) + p->dma_read(CSR, lch); + else + p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, lch); } -#else -#define omap_dma_in_1510_mode() 0 -#endif #ifdef CONFIG_ARCH_OMAP1 static inline void set_gdma_dev(int req, int dev) @@ -169,6 +165,17 @@ void omap_set_dma_priority(int lch, int dst_port, int priority) #endif EXPORT_SYMBOL(omap_set_dma_priority); +#if IS_ENABLED(CONFIG_USB_OMAP) +#ifdef CONFIG_ARCH_OMAP15XX +/* Returns 1 if the DMA module is in OMAP1510-compatible mode, 0 otherwise */ +static int omap_dma_in_1510_mode(void) +{ + return enable_1510_mode; +} +#else +#define omap_dma_in_1510_mode() 0 +#endif + void omap_set_dma_transfer_params(int lch, int data_type, int elem_count, int frame_count, int sync_mode, int dma_trigger, int src_or_dst_synch) @@ -418,17 +425,6 @@ static inline void omap_enable_channel_irq(int lch) p->dma_write(dma_chan[lch].enabled_irqs, CICR, lch); } -static inline void omap_disable_channel_irq(int lch) -{ - /* disable channel interrupts */ - p->dma_write(0, CICR, lch); - /* Clear CSR */ - if (dma_omap1()) - p->dma_read(CSR, lch); - else - p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, lch); -} - void omap_disable_dma_irq(int lch, u16 bits) { dma_chan[lch].enabled_irqs &= ~bits; @@ -473,6 +469,7 @@ static inline void disable_lnk(int lch) p->dma_write(l, CLNK_CTRL, lch); dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE; } +#endif int omap_request_dma(int dev_id, const char *dev_name, void (*callback)(int lch, u16 ch_status, void *data), @@ -572,6 +569,7 @@ static void omap_clear_dma(int lch) local_irq_restore(flags); } +#if IS_ENABLED(CONFIG_USB_OMAP) void omap_start_dma(int lch) { u32 l; @@ -792,6 +790,7 @@ int omap_get_dma_active_status(int lch) return (p->dma_read(CCR, lch) & OMAP_DMA_CCR_EN) != 0; } EXPORT_SYMBOL(omap_get_dma_active_status); +#endif int omap_dma_running(void) { diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig index cee934dce4f0..69394dc1cdfb 100644 --- a/drivers/usb/gadget/udc/Kconfig +++ b/drivers/usb/gadget/udc/Kconfig @@ -128,7 +128,7 @@ config USB_GR_UDC config USB_OMAP tristate "OMAP USB Device Controller" - depends on ARCH_OMAP1 || (ARCH_OMAP && COMPILE_TEST) + depends on ARCH_OMAP1 depends on ISP1301_OMAP || !(MACH_OMAP_H2 || MACH_OMAP_H3) help Many Texas Instruments OMAP processors have flexible full diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h index 5e228428fda1..07fa58ae9902 100644 --- a/include/linux/omap-dma.h +++ b/include/linux/omap-dma.h @@ -299,8 +299,9 @@ extern void omap_set_dma_priority(int lch, int dst_port, int priority); extern int omap_request_dma(int dev_id, const char *dev_name, void (*callback)(int lch, u16 ch_status, void *data), void *data, int *dma_ch); -extern void omap_disable_dma_irq(int ch, u16 irq_bits); extern void omap_free_dma(int ch); +#if IS_ENABLED(CONFIG_USB_OMAP) +extern void omap_disable_dma_irq(int ch, u16 irq_bits); extern void omap_start_dma(int lch); extern void omap_stop_dma(int lch); extern void omap_set_dma_transfer_params(int lch, int data_type, @@ -326,6 +327,8 @@ extern void omap_set_dma_dest_burst_mode(int lch, extern dma_addr_t omap_get_dma_src_pos(int lch); extern dma_addr_t omap_get_dma_dst_pos(int lch); extern int omap_get_dma_active_status(int lch); +#endif + extern int omap_dma_running(void); #if IS_ENABLED(CONFIG_FB_OMAP)