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[2003:f1:33ce:b00:28ba:a8c7:44a6:f562]) by smtp.googlemail.com with ESMTPSA id y186sm10712491wmb.41.2019.09.21.08.12.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 21 Sep 2019 08:12:43 -0700 (PDT) From: Martin Blumenstingl To: narmstrong@baylibre.com, jbrunet@baylibre.com, robh+dt@kernel.org, mark.rutland@arm.com, linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, khilman@baylibre.com Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, Martin Blumenstingl Subject: [PATCH 0/5] provide the XTAL clock via OF on Meson8/8b/8m2 Date: Sat, 21 Sep 2019 17:12:18 +0200 Message-Id: <20190921151223.768842-1-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org So far the HHI clock controller has been providing the XTAL clock on Amlogic Meson8/Meson8b/Meson8m2 SoCs. This is not correct because the XTAL is actually a crystal on the boards and the SoC has a dedicated input for it. This updates the dt-bindings of the HHI clock controller and defines a fixed-clock in meson.dtsi (along with switching everything over to use this clock). The clock driver needs three updates to use this: - patch #2 uses clk_hw_set_parent in the CPU clock notifier. This drops the explicit reference to CLKID_XTAL while at the same time making the code much easier (thanks to Neil for providing this new method as part of the G12A CPU clock bringup!) - patch #3 ensures that the clock driver doesn't rely on it's internal XTAL clock while not losing support for older .dtbs that don't have the XTAL clock input yet - with patch #4 the clock controller's own XTAL clock is not registered anymore when a clock input is provided via OF This series is a functional no-op. It's main goal is to better represent how the actual hardware looks like. Martin Blumenstingl (5): dt-bindings: clock: meson8b: add the clock inputs clk: meson: meson8b: use clk_hw_set_parent in the CPU clock notifier clk: meson: meson8b: change references to the XTAL clock to use the name clk: meson: meson8b: don't register the XTAL clock when provided via OF ARM: dts: meson: provide the XTAL clock using a fixed-clock .../bindings/clock/amlogic,meson8b-clkc.txt | 5 + arch/arm/boot/dts/meson.dtsi | 7 ++ arch/arm/boot/dts/meson6.dtsi | 7 -- arch/arm/boot/dts/meson8.dtsi | 15 +-- arch/arm/boot/dts/meson8b-ec100.dts | 2 +- arch/arm/boot/dts/meson8b-mxq.dts | 2 +- arch/arm/boot/dts/meson8b-odroidc1.dts | 2 +- arch/arm/boot/dts/meson8b.dtsi | 15 +-- drivers/clk/meson/meson8b.c | 106 +++++++++--------- 9 files changed, 87 insertions(+), 74 deletions(-)