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 v3 07/13] [media] mtk-mipicsi: enable/disable ana clk
Date: Tue, 14 May 2019 14:13:44 +0800 [thread overview]
Message-ID: <1557814430-9675-8-git-send-email-stu.hsieh@mediatek.com> (raw)
In-Reply-To: <1557814430-9675-1-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 117eb1939014..f9123765ebbd 100644
--- a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
+++ b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
@@ -152,6 +152,41 @@ 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)
{
@@ -776,6 +811,8 @@ 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);
@@ -811,6 +848,8 @@ 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:[~2019-05-14 6:15 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-14 6:13 [PATCH v3 00/13] Add mediatek mipicsi driver for Mediatek SOC MT2712 Stu Hsieh
2019-05-14 6:13 ` [PATCH v3 01/13] dt-bindings: media: Add binding for MT2712 MIPI-CSI2 Stu Hsieh
2019-05-14 19:28 ` Rob Herring
2019-05-14 6:13 ` [PATCH v3 02/13] [media] mtk-mipicsi: add mediatek mipicsi driver for mt2712 Stu Hsieh
2019-05-17 7:37 ` CK Hu
2019-05-14 6:13 ` [PATCH v3 03/13] [media] mtk-mipicsi: register the soc_camera host Stu Hsieh
2019-05-14 6:13 ` [PATCH v3 04/13] [media] mtk-mipicsi: add the check for non-supported color format Stu Hsieh
2019-05-14 6:13 ` [PATCH v3 05/13] [media] mtk-mipicsi: get the w/h/bytepwerline for mtk_mipicsi Stu Hsieh
2019-05-14 6:13 ` [PATCH v3 06/13] [media] mtk-mipicsi: add function to support SerDes for link number Stu Hsieh
2019-05-14 6:13 ` Stu Hsieh [this message]
2019-05-14 6:13 ` [PATCH v3 08/13] [media] mtk-mipicsi: enable/disable cmos for mt2712 Stu Hsieh
2019-05-14 6:13 ` [PATCH v3 09/13] [media] mtk-mipicsi: add ISR for writing the data to buffer Stu Hsieh
2019-05-17 9:05 ` CK Hu
2019-05-14 6:13 ` [PATCH v3 10/13] [media] mtk-mipicsi: set the output address in HW reg Stu Hsieh
2019-05-14 6:13 ` [PATCH v3 11/13] [media] mtk-mipicsi: add function to get the format Stu Hsieh
2019-05-14 6:13 ` [PATCH v3 12/13] [media] mtk-mipicsi: add debug message for mipicsi driver Stu Hsieh
2019-05-14 6:13 ` [PATCH v3 13/13] [media] mtk-mipicsi: add debugfs " Stu Hsieh
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