[PATCH 0/2] Fix mtk_disp_pwm_get_state function disp_pwm enabled flag

[PATCH 0/2] Fix mtk_disp_pwm_get_state function disp_pwm enabled flag

[xinlei.lee]

From: Xinlei Lee <xinlei.lee@mediatek.com>

Base on the branch of Linux-next/master.

The series mainly completes:
1. Add compatible for MediaTek MT8188 in the dt-bindings file.
2. Fix the parameters calculated by the enabled flag of disp_pwm in the
mtk_disp_pwm_get_state function;

xinlei lee (2):
  dt-bindings: pwm: Add compatible for Mediatek MT8188
  drivers: pwm: Add disp_pwm compatiable for MT8188

 Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml | 1 +
 drivers/pwm/pwm-mtk-disp.c                                   | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

-- 
2.18.0

[PATCH,1/2] dt-bindings: pwm: Add compatible for Mediatek MT8188

[xinlei.lee]

From: xinlei lee <xinlei.lee@mediatek.com>

Add dt-binding documentation of pwm for MediaTek MT8188 SoC.

Signed-off-by: xinlei lee <xinlei.lee@mediatek.com>
---
 Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml b/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml
index e4fe2d1bfef5..2dd93e8499f0 100644
--- a/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml
+++ b/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml
@@ -27,6 +27,7 @@ properties:
       - items:
           - enum:
               - mediatek,mt8186-disp-pwm
+              - mediatek,mt8188-disp-pwm
               - mediatek,mt8192-disp-pwm
               - mediatek,mt8195-disp-pwm
           - const: mediatek,mt8183-disp-pwm
-- 
2.18.0

[PATCH,2/2] pwm: mtk-disp: Fix the parameters calculated by the enabled flag of disp_pwm.

[xinlei.lee]

From: xinlei lee <xinlei.lee@mediatek.com>

In the original mtk_disp_pwm_get_state() function, the result of reading
con0 & BIT(0) is enabled as disp_pwm. 
In order to conform to the register table, we should use the disp_pwm 
base address as the enabled judgment.

Fixes: 3f2b16734914 ("pwm: mtk-disp: Implement atomic API .get_state()")
Signed-off-by: xinlei lee <xinlei.lee@mediatek.com>
---
 drivers/pwm/pwm-mtk-disp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
index c605013e4114..50425cd1de61 100644
--- a/drivers/pwm/pwm-mtk-disp.c
+++ b/drivers/pwm/pwm-mtk-disp.c
@@ -197,7 +197,7 @@ static void mtk_disp_pwm_get_state(struct pwm_chip *chip,
 	rate = clk_get_rate(mdp->clk_main);
 	con0 = readl(mdp->base + mdp->data->con0);
 	con1 = readl(mdp->base + mdp->data->con1);
-	state->enabled = !!(con0 & BIT(0));
+	state->enabled = !!(readl(mdp->base) & BIT(0));
 	clk_div = FIELD_GET(PWM_CLKDIV_MASK, con0);
 	period = FIELD_GET(PWM_PERIOD_MASK, con1);
 	/*
-- 
2.18.0

Re: [PATCH,1/2] dt-bindings: pwm: Add compatible for Mediatek MT8188

[Krzysztof Kozlowski]

On 23/08/2022 10:31, xinlei.lee@mediatek.com wrote:
> From: xinlei lee <xinlei.lee@mediatek.com>
> 
> Add dt-binding documentation of pwm for MediaTek MT8188 SoC.
> 
> Signed-off-by: xinlei lee <xinlei.lee@mediatek.com>
> ---
>  Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml | 1 +


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>


Best regards,
Krzysztof

Re: [PATCH,2/2] pwm: mtk-disp: Fix the parameters calculated by the enabled flag of disp_pwm.

[Krzysztof Kozlowski]

On 23/08/2022 10:31, xinlei.lee@mediatek.com wrote:
> From: xinlei lee <xinlei.lee@mediatek.com>
> 
> In the original mtk_disp_pwm_get_state() function, the result of reading
> con0 & BIT(0) is enabled as disp_pwm. 
> In order to conform to the register table, we should use the disp_pwm 
> base address as the enabled judgment.
> 
> Fixes: 3f2b16734914 ("pwm: mtk-disp: Implement atomic API .get_state()")
> Signed-off-by: xinlei lee <xinlei.lee@mediatek.com>

This is a fix so not really related with the change adding new device.
Send them separately in the future.

Best regards,
Krzysztof

Re: [PATCH,2/2] pwm: mtk-disp: Fix the parameters calculated by the enabled flag of disp_pwm.

[Miles Chen]

> In the original mtk_disp_pwm_get_state() function, the result of reading
> con0 & BIT(0) is enabled as disp_pwm. 
> In order to conform to the register table, we should use the disp_pwm 
> base address as the enabled judgment.
> 
> Fixes: 3f2b16734914 ("pwm: mtk-disp: Implement atomic API .get_state()")
> Signed-off-by: xinlei lee <xinlei.lee@mediatek.com>
> ---
>  drivers/pwm/pwm-mtk-disp.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
> index c605013e4114..50425cd1de61 100644
> --- a/drivers/pwm/pwm-mtk-disp.c
> +++ b/drivers/pwm/pwm-mtk-disp.c
> @@ -197,7 +197,7 @@ static void mtk_disp_pwm_get_state(struct pwm_chip *chip,
>  	rate = clk_get_rate(mdp->clk_main);
>  	con0 = readl(mdp->base + mdp->data->con0);
>  	con1 = readl(mdp->base + mdp->data->con1);
> -	state->enabled = !!(con0 & BIT(0));
> +	state->enabled = !!(readl(mdp->base) & BIT(0));
>  	clk_div = FIELD_GET(PWM_CLKDIV_MASK, con0);
>  	period = FIELD_GET(PWM_PERIOD_MASK, con1);
>  	/*

Reviewed-by: Miles Chen <miles.chen@mediatek.com> 

Re: [PATCH,1/2] dt-bindings: pwm: Add compatible for Mediatek MT8188

[Uwe Kleine-König]

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Hello,

On Tue, Aug 23, 2022 at 03:31:14PM +0800, xinlei.lee@mediatek.com wrote:
> From: xinlei lee <xinlei.lee@mediatek.com>
> 
> Add dt-binding documentation of pwm for MediaTek MT8188 SoC.
> 
> Signed-off-by: xinlei lee <xinlei.lee@mediatek.com>

Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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