* [PATCH] pwm: Add MediaTek MT8183 display PWM driver support
@ 2019-01-16 7:52 Jitao Shi
2019-01-16 10:25 ` Matthias Brugger
2019-01-17 13:00 ` Uwe Kleine-König
0 siblings, 2 replies; 4+ messages in thread
From: Jitao Shi @ 2019-01-16 7:52 UTC (permalink / raw)
To: Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
David Airlie, Matthias Brugger
Cc: eddie.huang, Jitao Shi, Sascha Hauer, srv_heupstream,
bibby.hsieh, linux-mediatek, Russell King, dri-devel,
linux-kernel, Inki Dae, yingjoe.chen, sj.huang, Sean Paul,
Philipp Zabel, Andy Yan, ck.hu, Vincent Palatin, Thierry Reding,
Ajay Kumar, linux-arm-kernel, Rahul Sharma
Use the mtk_pwm_data struction to define different registers
and add MT8183 specific register operations, such as MT8183
have commit register, needs to enable double buffer
before writing register, and needs to select commit mode
and use PWM_PERIOD/PWM_HIGH_WIDTH.
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
drivers/pwm/pwm-mtk-disp.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
index 893940d45f0d..15803c71fe80 100644
--- a/drivers/pwm/pwm-mtk-disp.c
+++ b/drivers/pwm/pwm-mtk-disp.c
@@ -277,10 +277,21 @@ static const struct mtk_pwm_data mt8173_pwm_data = {
.commit_mask = 0x1,
};
+static const struct mtk_pwm_data mt8183_pwm_data = {
+ .enable_mask = BIT(0),
+ .con0 = 0x18,
+ .con0_sel = 0x0,
+ .con1 = 0x1c,
+ .has_commit = false,
+ .bls_debug = 0x80,
+ .bls_debug_mask = 0x3,
+};
+
static const struct of_device_id mtk_disp_pwm_of_match[] = {
{ .compatible = "mediatek,mt2701-disp-pwm", .data = &mt2701_pwm_data},
{ .compatible = "mediatek,mt6595-disp-pwm", .data = &mt8173_pwm_data},
{ .compatible = "mediatek,mt8173-disp-pwm", .data = &mt8173_pwm_data},
+ { .compatible = "mediatek,mt8183-disp-pwm", .data = &mt8183_pwm_data},
{ }
};
MODULE_DEVICE_TABLE(of, mtk_disp_pwm_of_match);
--
2.12.5
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^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] pwm: Add MediaTek MT8183 display PWM driver support
2019-01-16 7:52 [PATCH] pwm: Add MediaTek MT8183 display PWM driver support Jitao Shi
@ 2019-01-16 10:25 ` Matthias Brugger
2019-01-17 13:00 ` Uwe Kleine-König
1 sibling, 0 replies; 4+ messages in thread
From: Matthias Brugger @ 2019-01-16 10:25 UTC (permalink / raw)
To: Jitao Shi, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala, David Airlie
Cc: eddie.huang, Vincent Palatin, Sascha Hauer, srv_heupstream,
bibby.hsieh, linux-mediatek, linux-kernel, dri-devel, Inki Dae,
yingjoe.chen, sj.huang, Sean Paul, Philipp Zabel, Russell King,
ck.hu, Andy Yan, Thierry Reding, Ajay Kumar, linux-arm-kernel,
Rahul Sharma
On 16/01/2019 08:52, Jitao Shi wrote:
> Use the mtk_pwm_data struction to define different registers
> and add MT8183 specific register operations, such as MT8183
> have commit register, needs to enable double buffer
has_commit is set to false, so I suppose you mean that MT8183 does not have a
commit register.
Regards,
Matthias
> before writing register, and needs to select commit mode
> and use PWM_PERIOD/PWM_HIGH_WIDTH.
>
> Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
> ---
> drivers/pwm/pwm-mtk-disp.c | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
> index 893940d45f0d..15803c71fe80 100644
> --- a/drivers/pwm/pwm-mtk-disp.c
> +++ b/drivers/pwm/pwm-mtk-disp.c
> @@ -277,10 +277,21 @@ static const struct mtk_pwm_data mt8173_pwm_data = {
> .commit_mask = 0x1,
> };
>
> +static const struct mtk_pwm_data mt8183_pwm_data = {
> + .enable_mask = BIT(0),
> + .con0 = 0x18,
> + .con0_sel = 0x0,
> + .con1 = 0x1c,
> + .has_commit = false,
> + .bls_debug = 0x80,
> + .bls_debug_mask = 0x3,
> +};
> +
> static const struct of_device_id mtk_disp_pwm_of_match[] = {
> { .compatible = "mediatek,mt2701-disp-pwm", .data = &mt2701_pwm_data},
> { .compatible = "mediatek,mt6595-disp-pwm", .data = &mt8173_pwm_data},
> { .compatible = "mediatek,mt8173-disp-pwm", .data = &mt8173_pwm_data},
> + { .compatible = "mediatek,mt8183-disp-pwm", .data = &mt8183_pwm_data},
> { }
> };
> MODULE_DEVICE_TABLE(of, mtk_disp_pwm_of_match);
>
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^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] pwm: Add MediaTek MT8183 display PWM driver support
2019-01-16 7:52 [PATCH] pwm: Add MediaTek MT8183 display PWM driver support Jitao Shi
2019-01-16 10:25 ` Matthias Brugger
@ 2019-01-17 13:00 ` Uwe Kleine-König
1 sibling, 0 replies; 4+ messages in thread
From: Uwe Kleine-König @ 2019-01-17 13:00 UTC (permalink / raw)
To: Jitao Shi
Cc: Mark Rutland, David Airlie, dri-devel, Ajay Kumar,
Vincent Palatin, bibby.hsieh, ck.hu, yingjoe.chen,
Thierry Reding, Sean Paul, Sascha Hauer, Pawel Moll,
Ian Campbell, Inki Dae, sj.huang, Rob Herring, linux-mediatek,
Russell King, Matthias Brugger, eddie.huang, linux-arm-kernel,
Rahul Sharma, srv_heupstream, linux-kernel, Philipp Zabel,
Kumar Gala, Andy Yan
On Wed, Jan 16, 2019 at 03:52:52PM +0800, Jitao Shi wrote:
> Use the mtk_pwm_data struction to define different registers
> and add MT8183 specific register operations, such as MT8183
> have commit register, needs to enable double buffer
> before writing register, and needs to select commit mode
> and use PWM_PERIOD/PWM_HIGH_WIDTH.
You forgot to add linux-pwm to the recipents.
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] pwm: Add MediaTek MT8183 display PWM driver support
@ 2019-01-22 8:58 Jitao Shi
0 siblings, 0 replies; 4+ messages in thread
From: Jitao Shi @ 2019-01-22 8:58 UTC (permalink / raw)
To: Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
linux-pwm, David Airlie, Matthias Brugger
Cc: stonea168, dri-devel, Andy Yan, Ajay Kumar, Vincent Palatin,
cawa.cheng, bibby.hsieh, ck.hu, Russell King, Thierry Reding,
devicetree, Jitao Shi, Philipp Zabel, Inki Dae, linux-mediatek,
yingjoe.chen, eddie.huang, linux-arm-kernel, Rahul Sharma,
srv_heupstream, linux-kernel, Sascha Hauer, Sean Paul
Use the mtk_pwm_data struction to define different registers
and add MT8183 specific register operations, such as MT8183
doesn't have commit register, needs to disable double buffer
before writing register, and needs to select commit mode
and use PWM_PERIOD/PWM_HIGH_WIDTH.
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
drivers/pwm/pwm-mtk-disp.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
index 893940d45f0d..15803c71fe80 100644
--- a/drivers/pwm/pwm-mtk-disp.c
+++ b/drivers/pwm/pwm-mtk-disp.c
@@ -277,10 +277,21 @@ static const struct mtk_pwm_data mt8173_pwm_data = {
.commit_mask = 0x1,
};
+static const struct mtk_pwm_data mt8183_pwm_data = {
+ .enable_mask = BIT(0),
+ .con0 = 0x18,
+ .con0_sel = 0x0,
+ .con1 = 0x1c,
+ .has_commit = false,
+ .bls_debug = 0x80,
+ .bls_debug_mask = 0x3,
+};
+
static const struct of_device_id mtk_disp_pwm_of_match[] = {
{ .compatible = "mediatek,mt2701-disp-pwm", .data = &mt2701_pwm_data},
{ .compatible = "mediatek,mt6595-disp-pwm", .data = &mt8173_pwm_data},
{ .compatible = "mediatek,mt8173-disp-pwm", .data = &mt8173_pwm_data},
+ { .compatible = "mediatek,mt8183-disp-pwm", .data = &mt8183_pwm_data},
{ }
};
MODULE_DEVICE_TABLE(of, mtk_disp_pwm_of_match);
--
2.20.1
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^ permalink raw reply related [flat|nested] 4+ messages in thread
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2019-01-16 7:52 [PATCH] pwm: Add MediaTek MT8183 display PWM driver support Jitao Shi
2019-01-16 10:25 ` Matthias Brugger
2019-01-17 13:00 ` Uwe Kleine-König
2019-01-22 8:58 Jitao Shi
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