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[2a02:3100:ad73:6800::e63]) by smtp.googlemail.com with ESMTPSA id a640c23a62f3a-ac71922bb65sm459288866b.34.2025.03.30.03.19.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Mar 2025 03:19:37 -0700 (PDT) From: Martin Blumenstingl To: linux-amlogic@lists.infradead.org, linux-iio@vger.kernel.org Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, gnstark@salutedevices.com, jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, christianshewitt@gmail.com, Martin Blumenstingl Subject: [PATCH v2 0/2] iio: adc: meson: add MPLL clock workaround for GXLX Date: Sun, 30 Mar 2025 12:19:20 +0200 Message-ID: <20250330101922.1942169-1-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.49.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250330_031940_229301_A72D1B90 X-CRM114-Status: GOOD ( 13.97 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hello, Amlogic GXLX SoCs seem to be mostly the same silicon as GXL. The only known differences are: - one less Mali-450 GPU core - no VP9 codec - and an odd one: the three MPLL clocks need a bit toggled in the SAR ADC register space This series attempt to fix audio output (which relies on the MPLL clocks) on the GXLX boards. Unfortunately all we have is a downstream commit [0] without any further explanation (or anyone who wants to provide details on this). Since it's not clear if this is a gate, a reset or some other hardware fix: the driver side includes a warning for users to update their .dtb along with kernel images in case we ever figure out what these bits do and how to model them properly. Changes since v1 at [1]: - added Krzysztof's Acked-by to the dt-bindings patch (thank you) - added Neil's Reviewed-by (thank you!) - fixed meson_sar_adc_gxlx_param to be independent of future to-be-upstreamed patches (fixes a build error) [0] https://github.com/khadas/linux/commit/d1d98f2ed8c83eb42af8880ed8e206aa402dd70a#diff-c5aaf54323ef93777c5083de37f933058ea8d0af79a1941e0b5a0667dc0f89b3 [1] https://lore.kernel.org/linux-amlogic/20241231194207.2772750-1-martin.blumenstingl@googlemail.com/ Martin Blumenstingl (2): dt-bindings: iio: adc: amlogic,meson-saradc: Add GXLX SoC compatible iio: adc: meson: add support for the GXLX SoC .../iio/adc/amlogic,meson-saradc.yaml | 1 + drivers/iio/adc/meson_saradc.c | 34 +++++++++++++++++++ 2 files changed, 35 insertions(+)