From: Stu Hsieh <stu.hsieh@mediatek.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>, CK Hu <ck.hu@mediatek.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Stu Hsieh <stu.hsieh@mediatek.com>, <linux-media@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<srv_heupstream@mediatek.com>
Subject: [PATCH v2 08/15] [media] mtk-mipicsi: enable/disable ana clk
Date: Tue, 16 Apr 2019 17:30:08 +0800 [thread overview]
Message-ID: <1555407015-18130-9-git-send-email-stu.hsieh@mediatek.com> (raw)
In-Reply-To: <1555407015-18130-1-git-send-email-stu.hsieh@mediatek.com>
This patch enable/disable ana clk when power on/off
Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
.../media/platform/mtk-mipicsi/mtk_mipicsi.c | 39 +++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
index c92ffe6684ef..8a4079f0ed9b 100644
--- a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
+++ b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
@@ -163,6 +163,41 @@ struct mtk_mipicsi_dev {
V4L2_MBUS_PCLK_SAMPLE_FALLING | \
V4L2_MBUS_DATA_ACTIVE_HIGH)
+static void mtk_mipicsi_ana_clk_enable(void __iomem *base, bool enable)
+{
+ if (enable) {
+ writel(1UL | readl(base + MIPI_RX_ANA00_CSI),
+ base + MIPI_RX_ANA00_CSI);
+ writel(1UL | readl(base + MIPI_RX_ANA04_CSI),
+ base + MIPI_RX_ANA04_CSI);
+ writel(1UL | readl(base + MIPI_RX_ANA08_CSI),
+ base + MIPI_RX_ANA08_CSI);
+ writel(1UL | readl(base + MIPI_RX_ANA0C_CSI),
+ base + MIPI_RX_ANA0C_CSI);
+ writel(1UL | readl(base + MIPI_RX_ANA10_CSI),
+ base + MIPI_RX_ANA10_CSI);
+ writel(1UL | readl(base + MIPI_RX_ANA20_CSI),
+ base + MIPI_RX_ANA20_CSI);
+ writel(1UL | readl(base + MIPI_RX_ANA24_CSI),
+ base + MIPI_RX_ANA24_CSI);
+ } else {
+ writel(~1UL & readl(base + MIPI_RX_ANA00_CSI),
+ base + MIPI_RX_ANA00_CSI);
+ writel(~1UL & readl(base + MIPI_RX_ANA04_CSI),
+ base + MIPI_RX_ANA04_CSI);
+ writel(~1UL & readl(base + MIPI_RX_ANA08_CSI),
+ base + MIPI_RX_ANA08_CSI);
+ writel(~1UL & readl(base + MIPI_RX_ANA0C_CSI),
+ base + MIPI_RX_ANA0C_CSI);
+ writel(~1UL & readl(base + MIPI_RX_ANA10_CSI),
+ base + MIPI_RX_ANA10_CSI);
+ writel(~1UL & readl(base + MIPI_RX_ANA20_CSI),
+ base + MIPI_RX_ANA20_CSI);
+ writel(~1UL & readl(base + MIPI_RX_ANA24_CSI),
+ base + MIPI_RX_ANA24_CSI);
+ }
+}
+
static int get_subdev_register(const struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
@@ -796,6 +831,8 @@ static int mtk_mipicsi_pm_suspend(struct device *dev)
for (i = 0; i < mipicsi->clk_num; ++i)
clk_disable_unprepare(mipicsi->clk[i]);
+ mtk_mipicsi_ana_clk_enable(mipicsi->ana, false);
+
if (mipicsi->larb_pdev != NULL)
mtk_smi_larb_put(mipicsi->larb_pdev);
@@ -833,6 +870,8 @@ static int mtk_mipicsi_pm_resume(struct device *dev)
return ret;
}
+ mtk_mipicsi_ana_clk_enable(mipicsi->ana, true);
+
/* enable digtal clock */
for (i = 0; i < mipicsi->clk_num; ++i)
(void)clk_prepare_enable(mipicsi->clk[i]);
--
2.18.0
next prev parent reply other threads:[~2019-04-16 9:30 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-16 9:30 [PATCH v2 00/15] Add mediatek mipicsi driver for Mediatek SOC MT2712 Stu Hsieh
2019-04-16 9:30 ` [PATCH v2 01/15] dt-bindings: media: Add binding for MT2712 MIPI-CSI2 Stu Hsieh
2019-04-29 22:53 ` Rob Herring
2019-04-16 9:30 ` [PATCH v2 02/15] [media] mtk-mipicsi: add mediatek mipicsi driver for mt2712 Stu Hsieh
2019-04-18 1:34 ` CK Hu
2019-04-16 9:30 ` [PATCH v2 03/15] [media] mtk-mipicsi: add pm function Stu Hsieh
2019-04-16 9:30 ` [PATCH v2 04/15] [media] mtk-mipicsi: add color format support for mt2712 Stu Hsieh
2019-04-18 1:39 ` CK Hu
2019-04-16 9:30 ` [PATCH v2 05/15] [media] mtk-mipicsi: get the w/h/bytepwerline for mtk_mipicsi Stu Hsieh
2019-04-19 3:52 ` CK Hu
2019-04-16 9:30 ` [PATCH v2 06/15] [media] mtk-mipicsi: add function to support SerDes for link number Stu Hsieh
2019-04-16 9:30 ` [PATCH v2 07/15] [media] mtk-mipicsi: add mipicsi reg setting for mt2712 Stu Hsieh
2019-04-16 9:30 ` Stu Hsieh [this message]
2019-04-16 9:30 ` [PATCH v2 09/15] [media] mtk-mipicsi: enable/disable cmos " Stu Hsieh
2019-04-16 9:30 ` [PATCH v2 10/15] [media] mtk-mipicsi: add ISR for writing the data to buffer Stu Hsieh
2019-04-16 9:30 ` [PATCH v2 11/15] [media] mtk-mipicsi: set the output address in HW reg Stu Hsieh
2019-04-16 9:30 ` [PATCH v2 12/15] [media] mtk-mipicsi: add function to get the format Stu Hsieh
2019-04-16 9:30 ` [PATCH v2 13/15] [media] mtk-mipicsi: add the function for Get/Set PARM for application Stu Hsieh
2019-05-13 9:24 ` Hans Verkuil
2019-04-16 9:30 ` [PATCH v2 14/15] [media] mtk-mipicsi: add debug message for mipicsi driver Stu Hsieh
2019-04-16 9:30 ` [PATCH v2 15/15] [media] mtk-mipicsi: add debugfs " Stu Hsieh
-- strict thread matches above, loose matches on Subject: below --
2019-04-16 9:27 [PATCH v2 00/15] Add mediatek mipicsi driver for Mediatek SOC MT2712 Stu Hsieh
2019-04-16 9:27 ` [PATCH v2 08/15] [media] mtk-mipicsi: enable/disable ana clk Stu Hsieh
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