Changes in v6: 1. Adressed review comments for v3 and v4 version of GCC driver for SDM845. https://lkml.org/lkml/2018/4/16/1129. 2. Add support for new flag 'BRANCH_NO_DELAY' for branch clocks. 3. Addressed review comments for v5 version of rcg2_shared_ops patch. https://lkml.org/lkml/2018/4/19/86 4. The GCC clock driver(patch 3) depends upon the below patches related to GDSC operation and RPMh clock driver, which are under review. https://lkml.org/lkml/2018/4/27/110 https://lkml.org/lkml/2018/4/24/390 Changes in v5: 1. Adressed review comments for v3 and v4 version of GCC driver for SDM845 https://lkml.org/lkml/2018/4/16/1129 2. Removed bi_tcxo clock being modelled from the GCC driver, as RPMH clock driver would provide the same. https://lkml.org/lkml/2018/4/13/685 3. The GCC clock driver(patch 2) depends upon the below patches related to GDSC operation and RPMh clock driver, which are under review. https://lkml.org/lkml/2018/4/2/143 https://lkml.org/lkml/2018/4/13/685 Changes in v4: 1. Adressed review comments for v2 version of GCC driver for SDM845 https://lkml.org/lkml/2018/4/9/55. 2. The GCC clock driver(patch 3) depends upon the below patches related to GDSC operation and are under review. https://lkml.org/lkml/2018/4/2/142 Changes in v3: 1. Adressed review comments given for v2 series. 2. The GCC clock driver(patch 3) depends upon the below patches related to GDSC operation and are under review. https://lkml.org/lkml/2018/4/2/142 Changes in v2: Fixup for recalc_rate ops for clk_rcg2_shared_ops: There could be few scenarios where shared clocks are configured at rate other than CXO by boot. In those cases there would be a mismatch between the rate calculated by the recalc shared ops and the actual HW register configuration. Fix the same by adding an additional check to read current src from CFG register and make a decision based on that. Changes in v1: https://lkml.org/lkml/2018/1/31/209 This patch series does the miscellaneous changes to support clock nodes for SDM845. Below are the major changes for which the existing code does not have support. 1. Clear hardware clock control bit of RCGs where HW clock control bit is set by default so that software can control those root clocks. 2. Introduces clk_rcg2_shared_ops to support clock controller drivers for SDM845. With new shared ops, RCGs with shared branches will be configured to a safe source in disable path and actual RCG update configuration will be done in enable path instead of doing config update in set_rate. In set_rate(), just cache the rate instead of doing actual configuration update. Also each RCG in clock controller driver will have their own safe configuration frequency table to switch to safe frequency. 3. Add support for controlling Fabia PLL for which the support is not available in existing alpha PLL code. 4. Add Global Clock controller (GCC) driver for SDM845. This should allow most non-multimedia device drivers to probe and control their clocks. [v1] : https://lkml.org/lkml/2018/1/31/209 [v2] : https://lkml.org/lkml/2018/3/8/495 [v3] : https://www.spinics.net/lists/linux-arm-msm/msg35009.html [v4] : https://lkml.org/lkml/2018/4/9/79 [v5] : https://lkml.org/lkml/2018/4/18/367 Amit Nischal (2): clk: qcom: Configure the RCGs to a safe source as needed clk: qcom: Add support for BRANCH_NO_DELAY flag for branch clocks Taniya Das (1): clk: qcom: Add Global Clock controller (GCC) driver for SDM845 .../devicetree/bindings/clock/qcom,gcc.txt | 1 + drivers/clk/qcom/Kconfig | 10 +- drivers/clk/qcom/Makefile | 1 + drivers/clk/qcom/clk-branch.c | 7 +- drivers/clk/qcom/clk-branch.h | 1 + drivers/clk/qcom/clk-rcg.h | 7 +- drivers/clk/qcom/clk-rcg2.c | 207 +- drivers/clk/qcom/gcc-sdm845.c | 3480 ++++++++++++++++++++ include/dt-bindings/clock/qcom,gcc-sdm845.h | 239 ++ 9 files changed, 3940 insertions(+), 13 deletions(-) create mode 100644 drivers/clk/qcom/gcc-sdm845.c create mode 100644 include/dt-bindings/clock/qcom,gcc-sdm845.h -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
