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Date: Tue, 1 Aug 2017 13:56:55 +0200 From: Neil Armstrong <narmstrong@...libre.com> To: jbrunet@...libre.com, narmstrong@...libre.com Cc: linux-clk@...r.kernel.org, linux-amlogic@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: [PATCH v3.1 0/4] clk: meson: gxbb-aoclk: Add CEC 32k clock In order to support the standalone CEC Controller on the Amlogic SoCs, a specific CEC 32K clock must be handled in the AO domain. The CEC 32K AO Clock is a dual divider with dual counter to provide a more precise 32768Hz clock for the CEC subsystem from the external xtal. The AO clocks management registers are spread among the AO register space, so this patch also adds management of these registers mappings then uses them for the CEC 32K AO clock management. This patchset : - updates the bindings accordingly - switch driver to new bindings - adds the CEC 32k clock - adds the clock binding entry The DT Update will be sent in another patchset. Changes since v3 at [3] : - fix typo in cec_32k set_rate Changes since v2 at [2] : - fix round_rate invalid handling - enhance set_rate code thanks to Chris Moore - add more explicit comments thanks to Martin Changes since v1 at [1] : - move bindings to parent syscon node and move clkc to subnode - switch aoclkc to use regmap only register access - introduce aoclk-regmap-gate for this purpose until regmap clocks are generic [1] https://lkml.kernel.org/r/1499336663-23875-1-git-send-email-narmstrong@baylibre.com [2] https://lkml.kernel.org/r/1501235589-318-1-git-send-email-narmstrong@baylibre.com [3] https://lkml.kernel.org/r/1501504957-19476-1-git-send-email-narmstrong@baylibre.com Neil Armstrong (4): dt-bindings: clock: amlogic,gxbb-aoclkc: Update bindings clk: meson: gxbb-aoclk: Switch to regmap for register access dt-bindings: clock: gxbb-aoclk: Add CEC 32k clock clk: meson: gxbb-aoclk: Add CEC 32k clock .../bindings/clock/amlogic,gxbb-aoclkc.txt | 22 ++- drivers/clk/meson/Makefile | 2 +- drivers/clk/meson/gxbb-aoclk-32k.c | 194 +++++++++++++++++++++ drivers/clk/meson/gxbb-aoclk-regmap.c | 46 +++++ drivers/clk/meson/gxbb-aoclk.c | 65 ++++--- drivers/clk/meson/gxbb-aoclk.h | 42 +++++ include/dt-bindings/clock/gxbb-aoclkc.h | 1 + 7 files changed, 342 insertions(+), 30 deletions(-) create mode 100644 drivers/clk/meson/gxbb-aoclk-32k.c create mode 100644 drivers/clk/meson/gxbb-aoclk-regmap.c create mode 100644 drivers/clk/meson/gxbb-aoclk.h -- 1.9.1
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