diff mbox series

[v2] clk: amlogic: axg-audio: use the auxiliary reset driver

Message ID 20241008-meson-clk-rst-aux-v2-1-682ab9151f4f@baylibre.com (mailing list archive)
State New
Delegated to: Neil Armstrong
Headers show
Series [v2] clk: amlogic: axg-audio: use the auxiliary reset driver | expand

Commit Message

Jerome Brunet Oct. 8, 2024, 7:48 a.m. UTC 
Remove the implementation of the reset driver in axg audio
clock driver and migrate to the one provided by the reset framework
on the auxiliary bus

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
Change in v2:
* Rebase on the applied version of amlogic auxiliary reset driver
* Link to v1: https://lore.kernel.org/r/20240719094910.3986450-1-jbrunet@baylibre.com
---
 drivers/clk/meson/Kconfig     |   1 +
 drivers/clk/meson/axg-audio.c | 109 ++++--------------------------------------
 2 files changed, 10 insertions(+), 100 deletions(-)


---
base-commit: 0e2d37252dd525b117bda4e4e0e6fac178ba569d
change-id: 20241008-meson-clk-rst-aux-b118809e53d6

Best regards,

Comments

Neil Armstrong Oct. 8, 2024, 7:53 a.m. UTC | #1 
On 08/10/2024 09:48, Jerome Brunet wrote:
> Remove the implementation of the reset driver in axg audio
> clock driver and migrate to the one provided by the reset framework
> on the auxiliary bus
> 
> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
> ---
> Change in v2:
> * Rebase on the applied version of amlogic auxiliary reset driver
> * Link to v1: https://lore.kernel.org/r/20240719094910.3986450-1-jbrunet@baylibre.com
> ---
>   drivers/clk/meson/Kconfig     |   1 +
>   drivers/clk/meson/axg-audio.c | 109 ++++--------------------------------------
>   2 files changed, 10 insertions(+), 100 deletions(-)
> 
> diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig
> index 78f648c9c97d..7cb21fc223b0 100644
> --- a/drivers/clk/meson/Kconfig
> +++ b/drivers/clk/meson/Kconfig
> @@ -106,6 +106,7 @@ config COMMON_CLK_AXG_AUDIO
>   	select COMMON_CLK_MESON_SCLK_DIV
>   	select COMMON_CLK_MESON_CLKC_UTILS
>   	select REGMAP_MMIO
> +	imply RESET_MESON_AUX
>   	help
>   	  Support for the audio clock controller on AmLogic A113D devices,
>   	  aka axg, Say Y if you want audio subsystem to work.
> diff --git a/drivers/clk/meson/axg-audio.c b/drivers/clk/meson/axg-audio.c
> index beda86349389..7714bde5ffc0 100644
> --- a/drivers/clk/meson/axg-audio.c
> +++ b/drivers/clk/meson/axg-audio.c
> @@ -15,6 +15,8 @@
>   #include <linux/reset-controller.h>
>   #include <linux/slab.h>
>   
> +#include <soc/amlogic/reset-meson-aux.h>
> +
>   #include "meson-clkc-utils.h"
>   #include "axg-audio.h"
>   #include "clk-regmap.h"
> @@ -1678,84 +1680,6 @@ static struct clk_regmap *const sm1_clk_regmaps[] = {
>   	&sm1_earcrx_dmac_clk,
>   };
>   
> -struct axg_audio_reset_data {
> -	struct reset_controller_dev rstc;
> -	struct regmap *map;
> -	unsigned int offset;
> -};
> -
> -static void axg_audio_reset_reg_and_bit(struct axg_audio_reset_data *rst,
> -					unsigned long id,
> -					unsigned int *reg,
> -					unsigned int *bit)
> -{
> -	unsigned int stride = regmap_get_reg_stride(rst->map);
> -
> -	*reg = (id / (stride * BITS_PER_BYTE)) * stride;
> -	*reg += rst->offset;
> -	*bit = id % (stride * BITS_PER_BYTE);
> -}
> -
> -static int axg_audio_reset_update(struct reset_controller_dev *rcdev,
> -				unsigned long id, bool assert)
> -{
> -	struct axg_audio_reset_data *rst =
> -		container_of(rcdev, struct axg_audio_reset_data, rstc);
> -	unsigned int offset, bit;
> -
> -	axg_audio_reset_reg_and_bit(rst, id, &offset, &bit);
> -
> -	regmap_update_bits(rst->map, offset, BIT(bit),
> -			assert ? BIT(bit) : 0);
> -
> -	return 0;
> -}
> -
> -static int axg_audio_reset_status(struct reset_controller_dev *rcdev,
> -				unsigned long id)
> -{
> -	struct axg_audio_reset_data *rst =
> -		container_of(rcdev, struct axg_audio_reset_data, rstc);
> -	unsigned int val, offset, bit;
> -
> -	axg_audio_reset_reg_and_bit(rst, id, &offset, &bit);
> -
> -	regmap_read(rst->map, offset, &val);
> -
> -	return !!(val & BIT(bit));
> -}
> -
> -static int axg_audio_reset_assert(struct reset_controller_dev *rcdev,
> -				unsigned long id)
> -{
> -	return axg_audio_reset_update(rcdev, id, true);
> -}
> -
> -static int axg_audio_reset_deassert(struct reset_controller_dev *rcdev,
> -				unsigned long id)
> -{
> -	return axg_audio_reset_update(rcdev, id, false);
> -}
> -
> -static int axg_audio_reset_toggle(struct reset_controller_dev *rcdev,
> -				unsigned long id)
> -{
> -	int ret;
> -
> -	ret = axg_audio_reset_assert(rcdev, id);
> -	if (ret)
> -		return ret;
> -
> -	return axg_audio_reset_deassert(rcdev, id);
> -}
> -
> -static const struct reset_control_ops axg_audio_rstc_ops = {
> -	.assert = axg_audio_reset_assert,
> -	.deassert = axg_audio_reset_deassert,
> -	.reset = axg_audio_reset_toggle,
> -	.status = axg_audio_reset_status,
> -};
> -
>   static struct regmap_config axg_audio_regmap_cfg = {
>   	.reg_bits	= 32,
>   	.val_bits	= 32,
> @@ -1766,16 +1690,14 @@ struct audioclk_data {
>   	struct clk_regmap *const *regmap_clks;
>   	unsigned int regmap_clk_num;
>   	struct meson_clk_hw_data hw_clks;
> -	unsigned int reset_offset;
> -	unsigned int reset_num;
>   	unsigned int max_register;
> +	const char *rst_drvname;
>   };
>   
>   static int axg_audio_clkc_probe(struct platform_device *pdev)
>   {
>   	struct device *dev = &pdev->dev;
>   	const struct audioclk_data *data;
> -	struct axg_audio_reset_data *rst;
>   	struct regmap *map;
>   	void __iomem *regs;
>   	struct clk_hw *hw;
> @@ -1834,22 +1756,11 @@ static int axg_audio_clkc_probe(struct platform_device *pdev)
>   	if (ret)
>   		return ret;
>   
> -	/* Stop here if there is no reset */
> -	if (!data->reset_num)
> -		return 0;
> -
> -	rst = devm_kzalloc(dev, sizeof(*rst), GFP_KERNEL);
> -	if (!rst)
> -		return -ENOMEM;
> -
> -	rst->map = map;
> -	rst->offset = data->reset_offset;
> -	rst->rstc.nr_resets = data->reset_num;
> -	rst->rstc.ops = &axg_audio_rstc_ops;
> -	rst->rstc.of_node = dev->of_node;
> -	rst->rstc.owner = THIS_MODULE;
> +	/* Register auxiliary reset driver when applicable */
> +	if (data->rst_drvname)
> +		ret = devm_meson_rst_aux_register(dev, map, data->rst_drvname);
>   
> -	return devm_reset_controller_register(dev, &rst->rstc);
> +	return ret;
>   }
>   
>   static const struct audioclk_data axg_audioclk_data = {
> @@ -1869,9 +1780,8 @@ static const struct audioclk_data g12a_audioclk_data = {
>   		.hws = g12a_audio_hw_clks,
>   		.num = ARRAY_SIZE(g12a_audio_hw_clks),
>   	},
> -	.reset_offset = AUDIO_SW_RESET,
> -	.reset_num = 26,
>   	.max_register = AUDIO_CLK_SPDIFOUT_B_CTRL,
> +	.rst_drvname = "rst-g12a",
>   };
>   
>   static const struct audioclk_data sm1_audioclk_data = {
> @@ -1881,9 +1791,8 @@ static const struct audioclk_data sm1_audioclk_data = {
>   		.hws = sm1_audio_hw_clks,
>   		.num = ARRAY_SIZE(sm1_audio_hw_clks),
>   	},
> -	.reset_offset = AUDIO_SM1_SW_RESET0,
> -	.reset_num = 39,
>   	.max_register = AUDIO_EARCRX_DMAC_CLK_CTRL,
> +	.rst_drvname = "rst-sm1",
>   };
>   
>   static const struct of_device_id clkc_match_table[] = {
> 
> ---
> base-commit: 0e2d37252dd525b117bda4e4e0e6fac178ba569d
> change-id: 20241008-meson-clk-rst-aux-b118809e53d6
> 
> Best regards,

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Jerome Brunet Oct. 22, 2024, 8:19 a.m. UTC | #2 
Applied to clk-meson (clk-meson-next), thanks!

[1/1] clk: amlogic: axg-audio: use the auxiliary reset driver
      (no commit info)

Best regards,
--
Jerome
diff mbox series

Patch

diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig
index 78f648c9c97d..7cb21fc223b0 100644
--- a/drivers/clk/meson/Kconfig
+++ b/drivers/clk/meson/Kconfig
@@ -106,6 +106,7 @@  config COMMON_CLK_AXG_AUDIO
 	select COMMON_CLK_MESON_SCLK_DIV
 	select COMMON_CLK_MESON_CLKC_UTILS
 	select REGMAP_MMIO
+	imply RESET_MESON_AUX
 	help
 	  Support for the audio clock controller on AmLogic A113D devices,
 	  aka axg, Say Y if you want audio subsystem to work.
diff --git a/drivers/clk/meson/axg-audio.c b/drivers/clk/meson/axg-audio.c
index beda86349389..7714bde5ffc0 100644
--- a/drivers/clk/meson/axg-audio.c
+++ b/drivers/clk/meson/axg-audio.c
@@ -15,6 +15,8 @@ 
 #include <linux/reset-controller.h>
 #include <linux/slab.h>
 
+#include <soc/amlogic/reset-meson-aux.h>
+
 #include "meson-clkc-utils.h"
 #include "axg-audio.h"
 #include "clk-regmap.h"
@@ -1678,84 +1680,6 @@  static struct clk_regmap *const sm1_clk_regmaps[] = {
 	&sm1_earcrx_dmac_clk,
 };
 
-struct axg_audio_reset_data {
-	struct reset_controller_dev rstc;
-	struct regmap *map;
-	unsigned int offset;
-};
-
-static void axg_audio_reset_reg_and_bit(struct axg_audio_reset_data *rst,
-					unsigned long id,
-					unsigned int *reg,
-					unsigned int *bit)
-{
-	unsigned int stride = regmap_get_reg_stride(rst->map);
-
-	*reg = (id / (stride * BITS_PER_BYTE)) * stride;
-	*reg += rst->offset;
-	*bit = id % (stride * BITS_PER_BYTE);
-}
-
-static int axg_audio_reset_update(struct reset_controller_dev *rcdev,
-				unsigned long id, bool assert)
-{
-	struct axg_audio_reset_data *rst =
-		container_of(rcdev, struct axg_audio_reset_data, rstc);
-	unsigned int offset, bit;
-
-	axg_audio_reset_reg_and_bit(rst, id, &offset, &bit);
-
-	regmap_update_bits(rst->map, offset, BIT(bit),
-			assert ? BIT(bit) : 0);
-
-	return 0;
-}
-
-static int axg_audio_reset_status(struct reset_controller_dev *rcdev,
-				unsigned long id)
-{
-	struct axg_audio_reset_data *rst =
-		container_of(rcdev, struct axg_audio_reset_data, rstc);
-	unsigned int val, offset, bit;
-
-	axg_audio_reset_reg_and_bit(rst, id, &offset, &bit);
-
-	regmap_read(rst->map, offset, &val);
-
-	return !!(val & BIT(bit));
-}
-
-static int axg_audio_reset_assert(struct reset_controller_dev *rcdev,
-				unsigned long id)
-{
-	return axg_audio_reset_update(rcdev, id, true);
-}
-
-static int axg_audio_reset_deassert(struct reset_controller_dev *rcdev,
-				unsigned long id)
-{
-	return axg_audio_reset_update(rcdev, id, false);
-}
-
-static int axg_audio_reset_toggle(struct reset_controller_dev *rcdev,
-				unsigned long id)
-{
-	int ret;
-
-	ret = axg_audio_reset_assert(rcdev, id);
-	if (ret)
-		return ret;
-
-	return axg_audio_reset_deassert(rcdev, id);
-}
-
-static const struct reset_control_ops axg_audio_rstc_ops = {
-	.assert = axg_audio_reset_assert,
-	.deassert = axg_audio_reset_deassert,
-	.reset = axg_audio_reset_toggle,
-	.status = axg_audio_reset_status,
-};
-
 static struct regmap_config axg_audio_regmap_cfg = {
 	.reg_bits	= 32,
 	.val_bits	= 32,
@@ -1766,16 +1690,14 @@  struct audioclk_data {
 	struct clk_regmap *const *regmap_clks;
 	unsigned int regmap_clk_num;
 	struct meson_clk_hw_data hw_clks;
-	unsigned int reset_offset;
-	unsigned int reset_num;
 	unsigned int max_register;
+	const char *rst_drvname;
 };
 
 static int axg_audio_clkc_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	const struct audioclk_data *data;
-	struct axg_audio_reset_data *rst;
 	struct regmap *map;
 	void __iomem *regs;
 	struct clk_hw *hw;
@@ -1834,22 +1756,11 @@  static int axg_audio_clkc_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	/* Stop here if there is no reset */
-	if (!data->reset_num)
-		return 0;
-
-	rst = devm_kzalloc(dev, sizeof(*rst), GFP_KERNEL);
-	if (!rst)
-		return -ENOMEM;
-
-	rst->map = map;
-	rst->offset = data->reset_offset;
-	rst->rstc.nr_resets = data->reset_num;
-	rst->rstc.ops = &axg_audio_rstc_ops;
-	rst->rstc.of_node = dev->of_node;
-	rst->rstc.owner = THIS_MODULE;
+	/* Register auxiliary reset driver when applicable */
+	if (data->rst_drvname)
+		ret = devm_meson_rst_aux_register(dev, map, data->rst_drvname);
 
-	return devm_reset_controller_register(dev, &rst->rstc);
+	return ret;
 }
 
 static const struct audioclk_data axg_audioclk_data = {
@@ -1869,9 +1780,8 @@  static const struct audioclk_data g12a_audioclk_data = {
 		.hws = g12a_audio_hw_clks,
 		.num = ARRAY_SIZE(g12a_audio_hw_clks),
 	},
-	.reset_offset = AUDIO_SW_RESET,
-	.reset_num = 26,
 	.max_register = AUDIO_CLK_SPDIFOUT_B_CTRL,
+	.rst_drvname = "rst-g12a",
 };
 
 static const struct audioclk_data sm1_audioclk_data = {
@@ -1881,9 +1791,8 @@  static const struct audioclk_data sm1_audioclk_data = {
 		.hws = sm1_audio_hw_clks,
 		.num = ARRAY_SIZE(sm1_audio_hw_clks),
 	},
-	.reset_offset = AUDIO_SM1_SW_RESET0,
-	.reset_num = 39,
 	.max_register = AUDIO_EARCRX_DMAC_CLK_CTRL,
+	.rst_drvname = "rst-sm1",
 };
 
 static const struct of_device_id clkc_match_table[] = {