Thread (8 messages) 8 messages, 3 authors, 2022-09-07
STALE1398d

[PATCH 2/2] clk: imx: imx8mp: add shared clk gate for usb suspend clk

From: Li Jun <hidden>
Date: 2022-08-24 08:22:50
Also in: linux-clk, linux-devicetree
Subsystem: common clk framework, nxp i.mx clock drivers, the rest · Maintainers: Michael Turquette, Stephen Boyd, Abel Vesa, Linus Torvalds

32K usb suspend clock gate is shared with usb_root_clk.

Signed-off-by: Li Jun <redacted>
diff --git a/drivers/clk/imx/clk-imx8mp.c b/drivers/clk/imx/clk-imx8mp.c
index e89db568f5a8..5b66514bdd0c 100644
--- a/drivers/clk/imx/clk-imx8mp.c
+++ b/drivers/clk/imx/clk-imx8mp.c
@@ -17,6 +17,7 @@
 
 static u32 share_count_nand;
 static u32 share_count_media;
+static u32 share_count_usb;
 
 static const char * const pll_ref_sels[] = { "osc_24m", "dummy", "dummy", "dummy", };
 static const char * const audio_pll1_bypass_sels[] = {"audio_pll1", "audio_pll1_ref_sel", };
@@ -673,7 +674,8 @@ static int imx8mp_clocks_probe(struct platform_device *pdev)
 	hws[IMX8MP_CLK_UART2_ROOT] = imx_clk_hw_gate4("uart2_root_clk", "uart2", ccm_base + 0x44a0, 0);
 	hws[IMX8MP_CLK_UART3_ROOT] = imx_clk_hw_gate4("uart3_root_clk", "uart3", ccm_base + 0x44b0, 0);
 	hws[IMX8MP_CLK_UART4_ROOT] = imx_clk_hw_gate4("uart4_root_clk", "uart4", ccm_base + 0x44c0, 0);
-	hws[IMX8MP_CLK_USB_ROOT] = imx_clk_hw_gate4("usb_root_clk", "hsio_axi", ccm_base + 0x44d0, 0);
+	hws[IMX8MP_CLK_USB_ROOT] = imx_clk_hw_gate2_shared2("usb_root_clk", "hsio_axi", ccm_base + 0x44d0, 0, &share_count_usb);
+	hws[IMX8MP_CLK_USB_SUSP] = imx_clk_hw_gate2_shared2("usb_suspend_clk", "osc_32k", ccm_base + 0x44d0, 0, &share_count_usb);
 	hws[IMX8MP_CLK_USB_PHY_ROOT] = imx_clk_hw_gate4("usb_phy_root_clk", "usb_phy_ref", ccm_base + 0x44f0, 0);
 	hws[IMX8MP_CLK_USDHC1_ROOT] = imx_clk_hw_gate4("usdhc1_root_clk", "usdhc1", ccm_base + 0x4510, 0);
 	hws[IMX8MP_CLK_USDHC2_ROOT] = imx_clk_hw_gate4("usdhc2_root_clk", "usdhc2", ccm_base + 0x4520, 0);
-- 
2.34.1


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