linux-dev/drivers/clk/samsung, branch master

clk: samsung: exynos850: Implement CMU_MFCMSCL domain

2022-08-23T07:14:47Z

CMU_MFCMSCL clock domain provides clocks for MFC (Multi-Format Codec), JPEG Codec and Scaler IP-cores. According to Exynos850 TRM, CMU_MFCMSCL generates MFC, M2M, MCSC and JPEG clocks for BLK_MFCMSCL. This patch adds next clocks: - bus clocks in CMU_TOP for CMU_MFCMSCL - all internal CMU_MFCMSCL clocks - leaf clocks for MFCMSCL, TZPC (TrustZone Protection Controller), JPEG codec, M2M (Memory-to-Memory), MCSC (Multi-Channel Scaler), MFC (Multi-Format Codec), PPMU (Platform Performance Monitoring Unit), SysMMU and SysReg MFCMSCL related gate clocks in CMU_TOP were marked as CLK_IS_CRITICAL, because: 1. All of those have to be enabled in order to read /sys/kernel/debug/clk/clk_summary file 2. When some user driver (e.g. exynos-sysmmu) disables some derived leaf clock, it can lead to CMU_TOP clocks disable, which then makes the system hang. To prevent that, the CLK_IS_CRITICAL flag is used, as CLK_IGNORE_UNUSED is not enough. Signed-off-by: Sam Protsenko Acked-by: Chanwoo Choi Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20220809113323.29965-8-semen.protsenko@linaro.org

clk: samsung: exynos850: Implement CMU_IS domain

2022-08-23T07:14:47Z

CMU_IS clock domain provides clocks for IS IP-core (Image Signal Processing Subsystem). According to Exynos850 TRM, CMU_IS generates CSIS, IPP, ITP, VRA and GDC clocks for BLK_IS. This patch adds next clocks: - bus clocks in CMU_TOP needed for CMU_IS - all internal CMU_IS clocks - leaf clocks for IS IP-core, CSIS (Camera Serial Interface Slave), D_TZPC (TrustZone Protection Controller), CSIS DMA, GDC (Geometric Distortion Correction), IPP (Image Preprocessing Processing core), ITP (Image Texture Processing core), MCSC (Multi-Channel Scaler), VRA (Visual Recognition Accelerator), PPMU (Platform Performance Monitoring Unit), SysMMU and SysReg IS related gate clocks in CMU_TOP were marked as CLK_IS_CRITICAL, because: 1. All of those have to be enabled in order to read /sys/kernel/debug/clk/clk_summary file 2. When some user driver (e.g. exynos-sysmmu) disables some derived leaf clock, it can lead to CMU_TOP clocks disable, which then makes the system hang. To prevent that, the CLK_IS_CRITICAL flag is used, as CLK_IGNORE_UNUSED is not enough. Signed-off-by: Sam Protsenko Acked-by: Chanwoo Choi Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20220809113323.29965-7-semen.protsenko@linaro.org

clk: samsung: exynos850: Implement CMU_AUD domain

2022-08-23T07:14:46Z

CMU_AUD clock domain provides clocks for ABOX IP-core (audio subsystem). According to Exynos850 TRM, CMU_AUD generates Cortex-A32 clock, bus clock and audio clocks for BLK_AUD. This patch adds next clocks: - bus clocks in CMU_TOP needed for CMU_AUD - all internal CMU_AUD clocks - leaf clocks for Cortex-A32, Speedy FM, UAIF0..UAIF6 (Unified Audio Interface), CNT (counter), ABOX IP-core, ASB (Asynchronous Bridge), DAP (Debug Access Port), I2S Codec MCLK, D_TZPC (TrustZone Protection Controller), GPIO, PPMU (Platform Performance Monitoring Unit), SysMMU, SysReg and WDT ABOX clock was marked as CLK_IGNORE_UNUSED, as system hangs on boot otherwise. Once ABOX driver is implemented, maybe it can be handled there instead. Signed-off-by: Sam Protsenko Acked-by: Chanwoo Choi Reviewed-by: Krzysztof Kozlowski Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20220809113323.29965-6-semen.protsenko@linaro.org

clk: samsung: exynos850: Style fixes

2022-08-23T07:14:15Z

Fix some typos in comments and do small coding style improvements. Signed-off-by: Sam Protsenko Acked-by: Chanwoo Choi Reviewed-by: Krzysztof Kozlowski Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20220809113323.29965-5-semen.protsenko@linaro.org

clk: samsung: exynosautov9: add fsys1 clock support

2022-08-23T06:21:57Z

CMU_FSYS1 provides clocks for USB(2 x USB3.1 Gen-1, 2 x USB 2.0) and mmc. For MMC clocks, PLL_MMC(PLL0831X type) is also supported as a PLL source clock provider. Signed-off-by: Chanho Park Acked-by: Chanwoo Choi Acked-by: Krzysztof Kozlowski Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/d4aa967538fed9667e9550a256e545026fc2fa8d.1659054220.git.chanho61.park@samsung.com

clk: samsung: exynosautov9: add fsys0 clock support

2022-08-23T06:21:35Z

CMU_FSYS0 block provides clocks for PCIe Gen3 1 x 4Lanes and 2 x 2 Lanes. Signed-off-by: Chanho Park Acked-by: Chanwoo Choi Acked-by: Krzysztof Kozlowski Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/ae84d4a0487a5299076bfeef5732579f5207acf9.1659054220.git.chanho61.park@samsung.com

clk: samsung: exynosautov9: correct register offsets of peric0/c1

2022-08-23T06:15:22Z

Some register offsets of peric0 and peric1 cmu blocks need to be corrected and re-ordered by numerical order. Fixes: f2dd366992d0 ("clk: samsung: exynosautov9: add cmu_peric0 clock support") Fixes: b35f27fe73d8 ("clk: samsung: exynosautov9: add cmu_peric1 clock support") Signed-off-by: Chanho Park Reviewed-by: Krzysztof Kozlowski Acked-by: Chanwoo Choi Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20220727021357.152421-4-chanho61.park@samsung.com

clk: samsung: exynosautov9: add missing gate clks for peric0/c1

2022-08-23T06:15:16Z

"gout_peric0_pclk_1" and "gout_peric1_pclk_1" should be added to peric0 and peric1 respectively. Signed-off-by: Chanho Park Reviewed-by: Krzysztof Kozlowski Acked-by: Chanwoo Choi Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20220727021357.152421-3-chanho61.park@samsung.com

clk: samsung: exynos7885: Add TREX clocks

2022-08-23T06:05:04Z

TREX D Core and P core clocks seem to be related to the BTS (Bus Traffic Shaper) inside the Exynos7885 SoC, and are needed for the SoC to function correctly. When clocks are cut from TREX D Core, the eMMC and the framebuffer stops working properly. Other unknown things may stop working as well. When clocks are cut from TREX P Core, the system locks up needing a hard reset. Add these clocks and mark them critical so that they are always on. Signed-off-by: David Virag Reviewed-by: Krzysztof Kozlowski Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20220601233743.56317-5-virag.david003@gmail.com

clk: samsung: exynos7885: Implement CMU_FSYS domain

2022-08-23T06:04:43Z

CMU_FSYS clock domain provides clocks for FSYS IP-core providing clocks for all MMC devices on Exynos7885, and USB30DRD. Add clocks: - Bus clocks in CMU_TOP needed for CMU_FSYS - All clocks in CMU_FSYS needed for MMC devices Signed-off-by: David Virag Reviewed-by: Krzysztof Kozlowski Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20220601233743.56317-4-virag.david003@gmail.com