[PATCH v4 06/14] [media] mtk-mipicsi: enable/disable ana clk
From: Stu Hsieh <hidden>
Date: 2019-06-04 10:12:08
Also in:
linux-devicetree, linux-media, linux-mediatek, lkml
Subsystem:
media input infrastructure (v4l/dvb), the rest · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds
This patch enable/disable ana clk when power on/off Signed-off-by: Stu Hsieh <redacted> --- .../media/platform/mtk-mipicsi/mtk_mipicsi.c | 37 +++++++++++++++++++ 1 file changed, 37 insertions(+)
diff --git a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
index 28dcc683a958..f5cb29077022 100644
--- a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
+++ b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c@@ -182,6 +182,41 @@ static const struct mtk_format mtk_mipicsi_formats[] = { }, }; +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 void mtk_mipicsi_ana_init(void __iomem *base) { writel(0xFEFBEFBEU & readl(base + MIPI_RX_ANA4C_CSI),
@@ -354,6 +389,8 @@ static void mipicsi_clk_enable(struct mtk_mipicsi_dev *mipicsi, bool enable) for (i = 0; i < mipicsi->common_clk_num; i++) enable ? clk_prepare_enable(mipicsi->common_clk[i]) : clk_disable_unprepare(mipicsi->common_clk[i]); + + mtk_mipicsi_ana_clk_enable(mipicsi->ana, enable); } static int mtk_mipicsi_pm_suspend(struct device *dev)
--
2.18.0
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