Taniya Das 9c3df2b199 clk: qcom: gcc: Make disp gpll0 branch aon for sc7180/sdm845 ... The display gpll0 branch clock inside GCC needs to always be enabled. Otherwise the AHB clk (disp_cc_mdss_ahb_clk_src) for the display clk controller (dispcc) will stop clocking while sourcing from gpll0 when this branch inside GCC is turned off during unused clk disabling. We can never turn this branch off because the AHB clk for the display subsystem is needed to read/write any registers inside the display subsystem including clk related ones. This makes this branch a really easy way to turn off AHB access to the display subsystem and cause all sorts of mayhem. Let's just make the clk ops keep the clk enabled forever and ignore any attempts to disable this clk so that dispcc accesses keep working. Signed-off-by: Taniya Das <tdas@codeaurora.org> Reported-by: Evan Green <evgreen@chromium.org> Link: https://lore.kernel.org/r/1594796050-14511-1-git-send-email-tdas@codeaurora.org Fixes: 17269568f7 ("clk: qcom: Add Global Clock controller (GCC) driver for SC7180") Fixes: 06391eddb6 ("clk: qcom: Add Global Clock controller (GCC) driver for SDM845") [sboyd@kernel.org: Fill out commit text more] Signed-off-by: Stephen Boyd <sboyd@kernel.org>		2020-07-21 00:44:11 -07:00
..
a53-pll.c	clk: qcom: Add A53 PLL support	2018-01-02 10:00:24 -08:00
apcs-msm8916.c	clk: qcom: apcs-msm8916: use clk_parent_data to specify the parent	2020-01-04 23:15:47 -08:00
apss-ipq-pll.c	clk: qcom: Add ipq apss pll driver	2020-06-22 00:21:59 -07:00
apss-ipq6018.c	clk: qcom: Fix return value check in apss_ipq6018_probe()	2020-06-29 14:15:34 -07:00
camcc-sdm845.c	clk: qcom: Add camera clock controller driver for SDM845	2018-08-30 18:27:06 -07:00
clk-alpha-pll.c	clk: qcom: clk-alpha-pll: Add support for controlling Lucid PLLs	2020-03-09 15:14:56 -07:00
clk-alpha-pll.h	clk: qcom: Add CPU clock driver for msm8996	2020-07-10 17:09:20 -07:00
clk-branch.c	clk: qcom: branch: Add AON clock ops	2019-04-11 13:34:21 -07:00
clk-branch.h	clk: qcom: branch: Add AON clock ops	2019-04-11 13:34:21 -07:00
clk-cpu-8996.c	clk: qcom: msm8996: Make symbol 'cpu_msm8996_clks' static	2020-07-20 17:40:18 -07:00
clk-hfpll.c	clk: let init callback return an error code	2019-12-23 18:53:13 -08:00
clk-hfpll.h	clk: qcom: Add support for High-Frequency PLLs (HFPLLs)	2018-10-17 13:14:37 -07:00
clk-krait.c	clk: qcom: Add safe switch hook for krait mux clocks	2018-10-17 13:15:05 -07:00
clk-krait.h	clk: qcom: Add safe switch hook for krait mux clocks	2018-10-17 13:15:05 -07:00
clk-pll.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
clk-pll.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
clk-rcg.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
clk-rcg.h	clk: qcom: rcg2: Add support for display port clock ops	2019-12-18 21:22:00 -08:00
clk-rcg2.c	clk: qcom: rcg2: Don't crash if our parent can't be found; return an error	2020-02-03 23:04:02 -08:00
clk-regmap-divider.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
clk-regmap-divider.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
clk-regmap-mux-div.c	clk: qcom: Add regmap mux-div clocks support	2018-01-02 10:00:24 -08:00
clk-regmap-mux-div.h	clk: qcom: Use the correct style for SPDX License Identifier	2019-05-01 13:01:13 -07:00
clk-regmap-mux.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
clk-regmap-mux.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
clk-regmap.c	clk: qcom: Update SPDX headers for common files	2018-07-25 09:23:33 -07:00
clk-regmap.h	clk: qcom: Update SPDX headers for common files	2018-07-25 09:23:33 -07:00
clk-rpm.c	clk: qcom: clk-rpm: add missing rpm clk for ipq806x	2020-03-13 13:56:31 -07:00
clk-rpmh.c	clk: qcom: rpmh: Drop unnecessary semicolons	2020-03-24 19:35:02 -07:00
clk-smd-rpm.c	clk: qcom: smd: Add support for MSM8992/4 rpm clocks	2020-07-11 09:19:24 -07:00
clk-spmi-pmic-div.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284	2019-06-05 17:36:37 +02:00
common.c	clk: qcom: Allow constant ratio freq tables for rcg	2019-11-07 13:43:19 -08:00
common.h	clk: qcom: define probe by index API as common API	2019-08-08 08:20:01 -07:00
dispcc-sc7180.c	clk: qcom: dispcc: Remove support of disp_cc_mdss_rscc_ahb_clk	2020-02-12 15:03:08 -08:00
dispcc-sdm845.c	clk: qcom: dispcc: Add support for display port clocks	2019-12-18 21:24:13 -08:00
gcc-apq8084.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
gcc-ipq806x.c	ipq806x: gcc: add support for child probe	2020-07-21 00:10:21 -07:00
gcc-ipq4019.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
gcc-ipq6018.c	clk: qcom: Add ipq6018 Global Clock Controller support	2020-01-09 12:42:55 -08:00
gcc-ipq8074.c	clk: qcom: ipq8074: Add missing clocks for pcie	2020-07-11 09:12:36 -07:00
gcc-mdm9615.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
gcc-msm8660.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
gcc-msm8916.c	clk: qcom: msm8916: Fix the address location of pll->config_reg	2020-04-21 19:45:18 -07:00
gcc-msm8939.c	clk: qcom: gcc-msm8939: Add MSM8939 Generic Clock Controller	2020-05-26 19:37:58 -07:00
gcc-msm8960.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
gcc-msm8974.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
gcc-msm8994.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284	2019-06-05 17:36:37 +02:00
gcc-msm8996.c	clk: qcom: gcc-msm8996: Fix parent for CLKREF clocks	2020-01-06 08:55:28 -08:00
gcc-msm8998.c	clk: qcom: Add missing msm8998 ufs_unipro_core_clk_src	2020-05-28 16:52:25 -07:00
gcc-qcs404.c	clk: qcom: gcc: limit GPLL0_AO_OUT operating frequency	2019-12-18 22:07:52 -08:00
gcc-sc7180.c	clk: qcom: gcc: Make disp gpll0 branch aon for sc7180/sdm845	2020-07-21 00:44:11 -07:00
gcc-sdm660.c	clk: qcom: gcc: Use floor ops for SDCC clocks	2019-09-09 04:39:12 -07:00
gcc-sdm845.c	clk: qcom: gcc: Make disp gpll0 branch aon for sc7180/sdm845	2020-07-21 00:44:11 -07:00
gcc-sm8150.c	This time around we have 4 lines of diff in the core framework, removing a	2020-06-10 11:42:19 -07:00
gcc-sm8250.c	clk: qcom: gcc: Add global clock controller driver for SM8250	2020-03-09 15:14:57 -07:00
gdsc.c	clk: qcom: gdsc: Handle GDSC regulator supplies	2020-05-14 14:23:38 -07:00
gdsc.h	clk: qcom: gdsc: Handle GDSC regulator supplies	2020-05-14 14:23:38 -07:00
gpucc-msm8998.c	clk: qcom: Avoid SMMU/cx gdsc corner cases	2019-12-18 22:02:27 -08:00
gpucc-sc7180.c	clk: qcom: gpucc: Add support for GX GDSC for SC7180	2020-02-12 15:24:52 -08:00
gpucc-sdm845.c	clk: qcom: gpu_cc_gmu_clk_src has 5 parents, not 6	2018-11-28 13:24:45 -08:00
hfpll.c	clk: qcom: hfpll: use clk_parent_data to specify the parent	2019-12-18 22:07:52 -08:00
Kconfig	clk: qcom: Add CPU clock driver for msm8996	2020-07-10 17:09:20 -07:00
kpss-xcc.c	clk: qcom: Add KPSS ACC/GCC driver	2018-10-17 13:14:54 -07:00
krait-cc.c	clk: qcom: Add safe switch hook for krait mux clocks	2018-10-17 13:15:05 -07:00
lcc-ipq806x.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
lcc-mdm9615.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
lcc-msm8960.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
lpasscc-sdm845.c	clk: qcom: define probe by index API as common API	2019-08-08 08:20:01 -07:00
Makefile	clk: qcom: Add CPU clock driver for msm8996	2020-07-10 17:09:20 -07:00
mmcc-apq8084.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
mmcc-msm8960.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
mmcc-msm8974.c	clk: qcom: mmcc8974: move gfx3d_clk_src from the mmcc to rpm	2019-12-18 21:27:44 -08:00
mmcc-msm8996.c	clk: qcom: mmcc-msm8996: Properly describe GPU_GX gdsc	2020-05-14 14:23:42 -07:00
mmcc-msm8998.c	clk: qcom: Add MSM8998 Multimedia Clock Controller (MMCC) driver	2019-12-18 21:37:40 -08:00
mss-sc7180.c	clk: qcom: Add modem clock controller driver for SC7180	2020-03-20 16:28:05 -07:00
q6sstop-qcs404.c	clk: qcom: Add Q6SSTOP clock controller for QCS404	2019-11-07 13:10:36 -08:00
reset.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
reset.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
turingcc-qcs404.c	clk: qcom: fix QCS404 TuringCC regmap	2019-09-09 09:05:22 -07:00
videocc-sc7180.c	clk: qcom: videocc: Update the clock flag for video_cc_vcodec0_core_clk	2020-02-12 15:02:44 -08:00
videocc-sdm845.c	clk: qcom: Move frequency table macro to common file	2018-07-06 16:45:51 -07:00