From: Jitao Shi <jitao.shi@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
"Mark Rutland" <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>, <linux-pwm@vger.kernel.org>,
David Airlie <airlied@linux.ie>,
Matthias Brugger <matthias.bgg@gmail.com>
Cc: stonea168@163.com, dri-devel@lists.freedesktop.org,
Andy Yan <andy.yan@rock-chips.com>,
Ajay Kumar <ajaykumar.rs@samsung.com>,
Vincent Palatin <vpalatin@chromium.org>,
cawa.cheng@mediatek.com, bibby.hsieh@mediatek.com,
ck.hu@mediatek.com, Russell King <rmk+kernel@arm.linux.org.uk>,
Thierry Reding <treding@nvidia.com>,
devicetree@vger.kernel.org, Jitao Shi <jitao.shi@mediatek.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Inki Dae <inki.dae@samsung.com>,
linux-mediatek@lists.infradead.org, yingjoe.chen@mediatek.com,
eddie.huang@mediatek.com, linux-arm-kernel@lists.infradead.org,
Rahul Sharma <rahul.sharma@samsung.com>,
srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org,
Sascha Hauer <kernel@pengutronix.de>,
Sean Paul <seanpaul@chromium.org>
Subject: [PATCH] pwm: Add MediaTek MT8183 display PWM driver support
Date: Tue, 22 Jan 2019 16:58:18 +0800 [thread overview]
Message-ID: <20190122085818.76051-1-jitao.shi@mediatek.com> (raw)
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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next reply other threads:[~2019-01-22 8:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-22 8:58 Jitao Shi [this message]
-- strict thread matches above, loose matches on Subject: below --
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
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