kernel/git/stable/linux.git/drivers/clk/imx, branch linux-4.4.y

clk: imx: clk-pllv3: fix incorrect handle of enet powerdown bit

2020-05-10T08:26:18+00:00

commit b3e76bdc0b2190e67427d31cd740debd01c03631 upstream. After commit f53947456f98 ("ARM: clk: imx: update pllv3 to support imx7"), the former used BM_PLL_POWER bit is not correct anymore for IMX7 ENET. Instead, pll->powerdown holds the correct bit, so using powerdown bit in clk_pllv3_{prepare | unprepare} functions. Fixes: f53947456f98 ("ARM: clk: imx: update pllv3 to support imx7") Signed-off-by: Dong Aisheng Signed-off-by: Shawn Guo Signed-off-by: Greg Kroah-Hartman

clk: vf610: fix refcount leak in vf610_clocks_init()

2020-01-29T09:21:38+00:00

[ Upstream commit 567177024e0313e4f0dcba7ba10c0732e50e655d ] The of_find_compatible_node() returns a node pointer with refcount incremented, but there is the lack of use of the of_node_put() when done. Add the missing of_node_put() to release the refcount. Signed-off-by: Yangtao Li Fixes: 1f2c5fd5f048 ("ARM: imx: add VF610 clock support") Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: imx7d: fix refcount leak in imx7d_clocks_init()

2020-01-29T09:21:38+00:00

[ Upstream commit 5f8c183a996b76bb09748073c856e4246fd4ce95 ] The of_find_compatible_node() returns a node pointer with refcount incremented, but there is the lack of use of the of_node_put() when done. Add the missing of_node_put() to release the refcount. Signed-off-by: Yangtao Li Fixes: 8f6d8094b215 ("ARM: imx: add imx7d clk tree support") Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: imx6sx: fix refcount leak in imx6sx_clocks_init()

2020-01-29T09:21:38+00:00

[ Upstream commit 1731e14fb30212dd8c1e9f8fc1af061e56498c55 ] The of_find_compatible_node() returns a node pointer with refcount incremented, but there is the lack of use of the of_node_put() when done. Add the missing of_node_put() to release the refcount. Signed-off-by: Yangtao Li Fixes: d55135689019 ("ARM: imx: add clock driver for imx6sx") Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: imx6q: fix refcount leak in imx6q_clocks_init()

2020-01-29T09:21:37+00:00

[ Upstream commit c9ec1d8fef31b5fc9e90e99f9bd685db5caa7c5e ] The of_find_compatible_node() returns a node pointer with refcount incremented, but there is the lack of use of the of_node_put() when done. Add the missing of_node_put() to release the refcount. Signed-off-by: Yangtao Li Fixes: 2acd1b6f889c ("ARM: i.MX6: implement clocks using common clock framework") Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: imx6sl: ensure MMDC CH0 handshake is bypassed

2019-02-20T09:13:08+00:00

[ Upstream commit 0efcc2c0fd2001a83240a8c3d71f67770484917e ] Same as other i.MX6 SoCs, ensure unused MMDC channel's handshake is bypassed, this is to make sure no request signal will be generated when periphe_clk_sel is changed or SRC warm reset is triggered. Signed-off-by: Anson Huang Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: imx6q: reset exclusive gates on init

2019-01-26T08:42:53+00:00

[ Upstream commit f7542d817733f461258fd3a47d77da35b2d9fc81 ] The exclusive gates may be set up in the wrong way by software running before the clock driver comes up. In that case the exclusive setup is locked in its initial state, as the complementary function can't be activated without disabling the initial setup first. To avoid this lock situation, reset the exclusive gates to the off state and allow the kernel to provide the proper setup. Signed-off-by: Lucas Stach Reviewed-by: Dong Aisheng Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: imx6ul: fix missing of_node_put()

2018-09-26T06:35:05+00:00

[ Upstream commit 11177e7a7aaef95935592072985526ebf0a3df43 ] of_find_compatible_node() is returning a device node with refcount incremented and must be explicitly decremented after the last use which is right after the us in of_iomap() here. Signed-off-by: Nicholas Mc Guire Fixes: 787b4271a6a0 ("clk: imx: add imx6ul clk tree support") Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

clk: imx6: refine hdmi_isfr's parent to make HDMI work on i.MX6 SoCs w/o VPU

2017-12-20T09:04:59+00:00

[ Upstream commit c68ee58d9ee7b856ac722f18f4f26579c8fbd2b4 ] On i.MX6 SoCs without VPU (in my case MCIMX6D4AVT10AC), the hdmi driver fails to probe: [ 2.540030] dwhdmi-imx 120000.hdmi: Unsupported HDMI controller (0000:00:00) [ 2.548199] imx-drm display-subsystem: failed to bind 120000.hdmi (ops dw_hdmi_imx_ops): -19 [ 2.557403] imx-drm display-subsystem: master bind failed: -19 That's because hdmi_isfr's parent, video_27m, is not correctly ungated. As explained in commit 5ccc248cc537 ("ARM: imx6q: clk: Add support for mipi_core_cfg clock as a shared clock gate"), video_27m is gated by CCM_CCGR3[CG8]. On i.MX6 SoCs with VPU, the hdmi is working thanks to the CCM_CMEOR[mod_en_ov_vpu] bit which makes the video_27m ungated whatever is in CCM_CCGR3[CG8]. The issue can be reproduced by setting CCMEOR[mod_en_ov_vpu] to 0. Make the HDMI work in every case by setting hdmi_isfr's parent to mipi_core_cfg. Signed-off-by: Sébastien Szymanski Reviewed-by: Fabio Estevam Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

clk: imx31: fix rewritten input argument of mx31_clocks_init()

2017-01-12T10:22:49+00:00

commit bae203d58b7dce89664071b3fafe20cedaa3e4f6 upstream. Function mx31_clocks_init() is called during clock intialization on legacy boards with reference clock frequency passed as its input argument, this can be verified by examination of the function declaration found in arch/arm/mach-imx/common.h and actual function users which include that header file. Inside CCF driver the function ignores its input argument, by chance the used value in the function body is the same as input arguments on side of all callers. Fixes: d9388c843237 ("clk: imx31: Do not call mxc_timer_init twice when booting with DT") Signed-off-by: Vladimir Zapolskiy Reviewed-by: Uwe Kleine-König Acked-by: Stephen Boyd Signed-off-by: Shawn Guo Signed-off-by: Greg Kroah-Hartman