From: Nikita Shubin via B4 Relay <devnull+nikita.shubin.maquefel.me@kernel.org> To: Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, Alexander Sverdlin <alexander.sverdlin@gmail.com> Cc: linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, Nikita Shubin <nikita.shubin@maquefel.me>, Arnd Bergmann <arnd@arndb.de>, Linus Walleij <linus.walleij@linaro.org> Subject: [PATCH v2 1/4] ARM: ep93xx: add regmap aux_dev Date: Sun, 14 Apr 2024 13:03:48 +0300 [thread overview] Message-ID: <20240408-ep93xx-clk-v2-1-9c5629dec2dd@maquefel.me> (raw) In-Reply-To: <20240408-ep93xx-clk-v2-0-9c5629dec2dd@maquefel.me> From: Nikita Shubin <nikita.shubin@maquefel.me> The following driver's should be instantiated by ep93xx syscon driver: - reboot - pinctrl - clock They all require access to DEVCFG register with a shared lock held, to avoid conflict writing to swlocked parts of DEVCFG. Provide common resources such as base, regmap and spinlock via auxiliary bus framework. Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me> Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Stephen Boyd <sboyd@kernel.org> --- include/linux/soc/cirrus/ep93xx.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/include/linux/soc/cirrus/ep93xx.h b/include/linux/soc/cirrus/ep93xx.h index 56fbe2dc59b1..a27447971302 100644 --- a/include/linux/soc/cirrus/ep93xx.h +++ b/include/linux/soc/cirrus/ep93xx.h @@ -3,6 +3,18 @@ #define _SOC_EP93XX_H struct platform_device; +struct regmap; +struct spinlock_t; + +enum ep93xx_soc_model { + EP93XX_9301_SOC, + EP93XX_9307_SOC, + EP93XX_9312_SOC, +}; + +#include <linux/auxiliary_bus.h> +#include <linux/compiler_types.h> +#include <linux/container_of.h> #define EP93XX_CHIP_REV_D0 3 #define EP93XX_CHIP_REV_D1 4 @@ -10,6 +22,20 @@ struct platform_device; #define EP93XX_CHIP_REV_E1 6 #define EP93XX_CHIP_REV_E2 7 +struct ep93xx_regmap_adev { + struct auxiliary_device adev; + struct regmap *map; + void __iomem *base; + spinlock_t *lock; + void (*write)(struct regmap *map, spinlock_t *lock, unsigned int reg, + unsigned int val); + void (*update_bits)(struct regmap *map, spinlock_t *lock, + unsigned int reg, unsigned int mask, unsigned int val); +}; + +#define to_ep93xx_regmap_adev(_adev) \ + container_of((_adev), struct ep93xx_regmap_adev, adev) + #ifdef CONFIG_ARCH_EP93XX int ep93xx_pwm_acquire_gpio(struct platform_device *pdev); void ep93xx_pwm_release_gpio(struct platform_device *pdev); -- 2.41.0
WARNING: multiple messages have this Message-ID (diff)
From: Nikita Shubin <nikita.shubin@maquefel.me> To: Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, Alexander Sverdlin <alexander.sverdlin@gmail.com> Cc: linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, Nikita Shubin <nikita.shubin@maquefel.me>, Arnd Bergmann <arnd@arndb.de>, Linus Walleij <linus.walleij@linaro.org> Subject: [PATCH v2 1/4] ARM: ep93xx: add regmap aux_dev Date: Sun, 14 Apr 2024 13:03:48 +0300 [thread overview] Message-ID: <20240408-ep93xx-clk-v2-1-9c5629dec2dd@maquefel.me> (raw) In-Reply-To: <20240408-ep93xx-clk-v2-0-9c5629dec2dd@maquefel.me> The following driver's should be instantiated by ep93xx syscon driver: - reboot - pinctrl - clock They all require access to DEVCFG register with a shared lock held, to avoid conflict writing to swlocked parts of DEVCFG. Provide common resources such as base, regmap and spinlock via auxiliary bus framework. Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me> Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Stephen Boyd <sboyd@kernel.org> --- include/linux/soc/cirrus/ep93xx.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/include/linux/soc/cirrus/ep93xx.h b/include/linux/soc/cirrus/ep93xx.h index 56fbe2dc59b1..a27447971302 100644 --- a/include/linux/soc/cirrus/ep93xx.h +++ b/include/linux/soc/cirrus/ep93xx.h @@ -3,6 +3,18 @@ #define _SOC_EP93XX_H struct platform_device; +struct regmap; +struct spinlock_t; + +enum ep93xx_soc_model { + EP93XX_9301_SOC, + EP93XX_9307_SOC, + EP93XX_9312_SOC, +}; + +#include <linux/auxiliary_bus.h> +#include <linux/compiler_types.h> +#include <linux/container_of.h> #define EP93XX_CHIP_REV_D0 3 #define EP93XX_CHIP_REV_D1 4 @@ -10,6 +22,20 @@ struct platform_device; #define EP93XX_CHIP_REV_E1 6 #define EP93XX_CHIP_REV_E2 7 +struct ep93xx_regmap_adev { + struct auxiliary_device adev; + struct regmap *map; + void __iomem *base; + spinlock_t *lock; + void (*write)(struct regmap *map, spinlock_t *lock, unsigned int reg, + unsigned int val); + void (*update_bits)(struct regmap *map, spinlock_t *lock, + unsigned int reg, unsigned int mask, unsigned int val); +}; + +#define to_ep93xx_regmap_adev(_adev) \ + container_of((_adev), struct ep93xx_regmap_adev, adev) + #ifdef CONFIG_ARCH_EP93XX int ep93xx_pwm_acquire_gpio(struct platform_device *pdev); void ep93xx_pwm_release_gpio(struct platform_device *pdev); -- 2.41.0
next prev parent reply other threads:[~2024-04-14 10:04 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-14 10:03 [PATCH v2 0/4] DONOTMERGE: ep93xx-clk from ep93xx device tree conversion Nikita Shubin via B4 Relay 2024-04-14 10:03 ` Nikita Shubin 2024-04-14 10:03 ` Nikita Shubin via B4 Relay [this message] 2024-04-14 10:03 ` [PATCH v2 1/4] ARM: ep93xx: add regmap aux_dev Nikita Shubin 2024-04-14 10:03 ` [PATCH v2 2/4] clk: ep93xx: add DT support for Cirrus EP93xx Nikita Shubin via B4 Relay 2024-04-14 10:03 ` Nikita Shubin 2024-04-14 10:03 ` [PATCH v2 3/4] dt-bindings: soc: Add " Nikita Shubin via B4 Relay 2024-04-14 10:03 ` Nikita Shubin 2024-04-14 10:03 ` [PATCH v2 4/4] soc: Add SoC driver for Cirrus ep93xx Nikita Shubin via B4 Relay 2024-04-14 10:03 ` Nikita Shubin 2024-04-14 13:34 ` [PATCH v2 0/4] DONOTMERGE: ep93xx-clk from ep93xx device tree conversion Krzysztof Kozlowski 2024-04-26 11:41 ` Nikita Shubin
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