The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x ed1f4ccfe947a3e1018a3bd7325134574c7ff9b3 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2023041033-paragraph-uselessly-114f@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..

Possible dependencies:

ed1f4ccfe947 ("clk: imx: imx8mp: add shared clk gate for usb suspend clk") cf7f3f4fa9e5 ("clk: imx8mp: fix usb_root_clk parent")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From ed1f4ccfe947a3e1018a3bd7325134574c7ff9b3 Mon Sep 17 00:00:00 2001 From: Li Jun jun.li@nxp.com Date: Fri, 30 Sep 2022 22:54:22 +0800 Subject: [PATCH] clk: imx: imx8mp: add shared clk gate for usb suspend clk

32K usb suspend clock gate is shared with usb_root_clk, this shared clock gate was initially defined only for usb suspend clock, usb suspend clk is kept on while system is active or system sleep with usb wakeup enabled, so usb root clock is fine with this situation; with the commit cf7f3f4fa9e5 ("clk: imx8mp: fix usb_root_clk parent"), this clock gate is changed to be for usb root clock, but usb root clock will be off while usb is suspended, so usb suspend clock will be gated too, this cause some usb functionalities will not work, so define this clock to be a shared clock gate to conform with the real HW status.

Fixes: 9c140d9926761 ("clk: imx: Add support for i.MX8MP clock driver") Cc: stable@vger.kernel.org # v5.19+ Tested-by: Alexander Stein alexander.stein@ew.tq-group.com Signed-off-by: Li Jun jun.li@nxp.com Signed-off-by: Abel Vesa abel.vesa@linaro.org Link: https://lore.kernel.org/r/1664549663-20364-2-git-send-email-jun.li@nxp.com

diff --git a/drivers/clk/imx/clk-imx8mp.c b/drivers/clk/imx/clk-imx8mp.c index 652ae58c2735..5d68d975b4eb 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);