| Message ID | 20231211162331.435900-13-peter.griffin@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add minimal Tensor/GS101 SoC support and Oriole/Pixel6 board | expand |
> -----Original Message----- > From: Peter Griffin <peter.griffin@linaro.org> > Sent: Monday, December 11, 2023 9:53 PM > To: robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org; > mturquette@baylibre.com; conor+dt@kernel.org; sboyd@kernel.org; > tomasz.figa@gmail.com; s.nawrocki@samsung.com; linus.walleij@linaro.org; > wim@linux-watchdog.org; linux@roeck-us.net; catalin.marinas@arm.com; > will@kernel.org; arnd@arndb.de; olof@lixom.net; > gregkh@linuxfoundation.org; jirislaby@kernel.org; > cw00.choi@samsung.com; alim.akhtar@samsung.com > Cc: peter.griffin@linaro.org; tudor.ambarus@linaro.org; > andre.draszik@linaro.org; semen.protsenko@linaro.org; > saravanak@google.com; willmcvicker@google.com; soc@kernel.org; > devicetree@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux- > samsung-soc@vger.kernel.org; linux-clk@vger.kernel.org; linux- > gpio@vger.kernel.org; linux-watchdog@vger.kernel.org; kernel- > team@android.com; linux-serial@vger.kernel.org > Subject: [PATCH v7 12/16] watchdog: s3c2410_wdt: Add support for Google > gs101 SoC > > This patch adds the compatibles and drvdata for the Google > gs101 SoC found in Pixel 6, Pixel 6a & Pixel 6 pro phones. > > Similar to Exynos850 it has two watchdog instances, one for each cluster and > has some control bits in PMU registers. > > gs101 also has the dbgack_mask bit in wtcon register, so we also enable > QUIRK_HAS_DBGACK_BIT. > > Tested-by: Will McVicker <willmcvicker@google.com> > Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org> > Signed-off-by: Peter Griffin <peter.griffin@linaro.org> > --- > drivers/watchdog/s3c2410_wdt.c | 49 > ++++++++++++++++++++++++++++++---- > 1 file changed, 44 insertions(+), 5 deletions(-) > > diff --git a/drivers/watchdog/s3c2410_wdt.c > b/drivers/watchdog/s3c2410_wdt.c index b7a03668f743..c3046610ab5d > 100644 > --- a/drivers/watchdog/s3c2410_wdt.c > +++ b/drivers/watchdog/s3c2410_wdt.c > @@ -69,6 +69,13 @@ > #define EXYNOSAUTOV9_CLUSTER0_WDTRESET_BIT 25 > #define EXYNOSAUTOV9_CLUSTER1_WDTRESET_BIT 24 > > [snip] > static const struct of_device_id s3c2410_wdt_match[] = { > + { .compatible = "google,gs101-wdt", > + .data = &drv_data_gs101_cl0 }, > { .compatible = "samsung,s3c2410-wdt", > .data = &drv_data_s3c2410 }, > { .compatible = "samsung,s3c6410-wdt", @@ -605,9 +640,10 @@ > s3c2410_get_wdt_drv_data(struct platform_device *pdev, struct > s3c2410_wdt *wdt) > } > > #ifdef CONFIG_OF > - /* Choose Exynos850/ExynosAutov9 driver data w.r.t. cluster index > */ > + /* Choose Exynos9 SoC family driver data w.r.t. cluster index */ Exynos9 introduction is out of context here, so you can leave it as original comment, it is not adding anything here. > if (variant == &drv_data_exynos850_cl0 || > - variant == &drv_data_exynosautov9_cl0) { > + variant == &drv_data_exynosautov9_cl0 || > + variant == &drv_data_gs101_cl0) { > u32 index; [snip] > -- > 2.43.0.472.g3155946c3a-goog
On 13/12/2023 17:42, Alim Akhtar wrote: >> static const struct of_device_id s3c2410_wdt_match[] = { >> + { .compatible = "google,gs101-wdt", >> + .data = &drv_data_gs101_cl0 }, >> { .compatible = "samsung,s3c2410-wdt", >> .data = &drv_data_s3c2410 }, >> { .compatible = "samsung,s3c6410-wdt", @@ -605,9 +640,10 @@ >> s3c2410_get_wdt_drv_data(struct platform_device *pdev, struct >> s3c2410_wdt *wdt) >> } >> >> #ifdef CONFIG_OF >> - /* Choose Exynos850/ExynosAutov9 driver data w.r.t. cluster index >> */ >> + /* Choose Exynos9 SoC family driver data w.r.t. cluster index */ > Exynos9 introduction is out of context here, so you can leave it as original > comment, it is not adding anything here. Dropped that hunk and applied. Best regards, Krzysztof
On Mon, 11 Dec 2023 16:23:27 +0000, Peter Griffin wrote: > This patch adds the compatibles and drvdata for the Google > gs101 SoC found in Pixel 6, Pixel 6a & Pixel 6 pro phones. > > Similar to Exynos850 it has two watchdog instances, one for > each cluster and has some control bits in PMU registers. > > gs101 also has the dbgack_mask bit in wtcon register, so > we also enable QUIRK_HAS_DBGACK_BIT. > > [...] Applied, thanks! [12/16] watchdog: s3c2410_wdt: Add support for Google gs101 SoC https://git.kernel.org/krzk/linux/c/796bb2d3a16c1e786ed51183162783405b5c8f85 Best regards,
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index b7a03668f743..c3046610ab5d 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -69,6 +69,13 @@ #define EXYNOSAUTOV9_CLUSTER0_WDTRESET_BIT 25 #define EXYNOSAUTOV9_CLUSTER1_WDTRESET_BIT 24 +#define GS_CLUSTER0_NONCPU_OUT 0x1220 +#define GS_CLUSTER1_NONCPU_OUT 0x1420 +#define GS_CLUSTER0_NONCPU_INT_EN 0x1244 +#define GS_CLUSTER1_NONCPU_INT_EN 0x1444 +#define GS_CLUSTER2_NONCPU_INT_EN 0x1644 +#define GS_RST_STAT_REG_OFFSET 0x3B44 + /** * DOC: Quirk flags for different Samsung watchdog IP-cores * @@ -270,7 +277,35 @@ static const struct s3c2410_wdt_variant drv_data_exynosautov9_cl1 = { QUIRK_HAS_PMU_RST_STAT | QUIRK_HAS_PMU_CNT_EN, }; +static const struct s3c2410_wdt_variant drv_data_gs101_cl0 = { + .mask_reset_reg = GS_CLUSTER0_NONCPU_INT_EN, + .mask_bit = 2, + .mask_reset_inv = true, + .rst_stat_reg = GS_RST_STAT_REG_OFFSET, + .rst_stat_bit = 0, + .cnt_en_reg = GS_CLUSTER0_NONCPU_OUT, + .cnt_en_bit = 8, + .quirks = QUIRK_HAS_PMU_RST_STAT | QUIRK_HAS_PMU_MASK_RESET | + QUIRK_HAS_PMU_CNT_EN | QUIRK_HAS_WTCLRINT_REG | + QUIRK_HAS_DBGACK_BIT, +}; + +static const struct s3c2410_wdt_variant drv_data_gs101_cl1 = { + .mask_reset_reg = GS_CLUSTER1_NONCPU_INT_EN, + .mask_bit = 2, + .mask_reset_inv = true, + .rst_stat_reg = GS_RST_STAT_REG_OFFSET, + .rst_stat_bit = 1, + .cnt_en_reg = GS_CLUSTER1_NONCPU_OUT, + .cnt_en_bit = 7, + .quirks = QUIRK_HAS_PMU_RST_STAT | QUIRK_HAS_PMU_MASK_RESET | + QUIRK_HAS_PMU_CNT_EN | QUIRK_HAS_WTCLRINT_REG | + QUIRK_HAS_DBGACK_BIT, +}; + static const struct of_device_id s3c2410_wdt_match[] = { + { .compatible = "google,gs101-wdt", + .data = &drv_data_gs101_cl0 }, { .compatible = "samsung,s3c2410-wdt", .data = &drv_data_s3c2410 }, { .compatible = "samsung,s3c6410-wdt", @@ -605,9 +640,10 @@ s3c2410_get_wdt_drv_data(struct platform_device *pdev, struct s3c2410_wdt *wdt) } #ifdef CONFIG_OF - /* Choose Exynos850/ExynosAutov9 driver data w.r.t. cluster index */ + /* Choose Exynos9 SoC family driver data w.r.t. cluster index */ if (variant == &drv_data_exynos850_cl0 || - variant == &drv_data_exynosautov9_cl0) { + variant == &drv_data_exynosautov9_cl0 || + variant == &drv_data_gs101_cl0) { u32 index; int err; @@ -620,9 +656,12 @@ s3c2410_get_wdt_drv_data(struct platform_device *pdev, struct s3c2410_wdt *wdt) case 0: break; case 1: - variant = (variant == &drv_data_exynos850_cl0) ? - &drv_data_exynos850_cl1 : - &drv_data_exynosautov9_cl1; + if (variant == &drv_data_exynos850_cl0) + variant = &drv_data_exynos850_cl1; + else if (variant == &drv_data_exynosautov9_cl0) + variant = &drv_data_exynosautov9_cl1; + else if (variant == &drv_data_gs101_cl0) + variant = &drv_data_gs101_cl1; break; default: return dev_err_probe(dev, -EINVAL, "wrong cluster index: %u\n", index);