From: Stu Hsieh <stu.hsieh@mediatek.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>
Cc: srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org,
linux-mediatek@lists.infradead.org,
Stu Hsieh <stu.hsieh@mediatek.com>,
linux-arm-kernel@lists.infradead.org,
linux-media@vger.kernel.org
Subject: [PATCH 07/14] [media] mtk-mipicsi: enable/disable ana clk
Date: Mon, 8 Apr 2019 19:54:58 +0800 [thread overview]
Message-ID: <1554724505-19882-8-git-send-email-stu.hsieh@mediatek.com> (raw)
In-Reply-To: <1554724505-19882-1-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 c2f75d9b64b8..99991f698edf 100644
--- a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
+++ b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
@@ -164,6 +164,41 @@ 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)
{
@@ -802,6 +837,8 @@ 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);
@@ -839,6 +876,8 @@ 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
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next prev parent reply other threads:[~2019-04-08 11:56 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-08 11:54 [PATCH 00/14] Add mediatek mipicsi driver for Mediatek SOC MT2712 Stu Hsieh
2019-04-08 11:54 ` [PATCH 01/14] [media] mtk-mipicsi: add mediatek mipicsi driver for mt2712 Stu Hsieh
2019-04-09 6:12 ` CK Hu
2019-04-16 5:44 ` Stu Hsieh
2019-04-08 11:54 ` [PATCH 02/14] [media] mtk-mipicsi: add pm function Stu Hsieh
2019-04-08 11:54 ` [PATCH 03/14] [media] mtk-mipicsi: add color format support for mt2712 Stu Hsieh
2019-04-09 6:18 ` CK Hu
2019-04-16 5:42 ` Stu Hsieh
2019-04-08 11:54 ` [PATCH 04/14] [media] mtk-mipicsi: get the w/h/bytepwerline for mtk_mipicsi Stu Hsieh
2019-04-08 11:54 ` [PATCH 05/14] [media] mtk-mipicsi: add function to support SerDes for link number Stu Hsieh
2019-04-08 11:54 ` [PATCH 06/14] [media] mtk-mipicsi: add mipicsi reg setting for mt2712 Stu Hsieh
2019-04-08 11:54 ` Stu Hsieh [this message]
2019-04-08 11:54 ` [PATCH 08/14] [media] mtk-mipicsi: enable/disable cmos " Stu Hsieh
2019-04-08 11:55 ` [PATCH 09/14] [media] mtk-mipicsi: add ISR for writing the data to buffer Stu Hsieh
2019-04-08 11:55 ` [PATCH 10/14] [media] mtk-mipicsi: set the output address in HW reg Stu Hsieh
2019-04-08 11:55 ` [PATCH 11/14] [media] mtk-mipicsi: add function to get the format Stu Hsieh
2019-04-08 11:55 ` [PATCH 12/14] [media] mtk-mipicsi: add the function for Get/Set PARM for application Stu Hsieh
2019-04-08 11:55 ` [PATCH 13/14] [media] mtk-mipicsi: add debug message for mipicsi driver Stu Hsieh
2019-04-08 11:55 ` [PATCH 14/14] [media] mtk-mipicsi: add debugfs " Stu Hsieh
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