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Wed, 11 Nov 2026 20:46:40 -0800 (PST) Received: from myarch ([220.149.255.19]) by smtp.gmail.com with ESMTPSA id 00721157ae682-8b3933e0d01sm61919277b3.22.2026.11.11.20.46.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Nov 2026 20:46:39 -0800 (PST) From: fixca X-Google-Original-From: fixca To: shumingf@realtek.com Cc: broonie@kernel.org, Vijendar.Mukunda@amd.com, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, JaeHoon Kim Subject: Re: [PATCH RFC 0/1] ASoC: rt1320: LG gram 16Z95U speaker works with the BIOS init values Date: Thu, 12 Nov 2026 13:46:24 +0900 Message-ID: <20261112044624.4395-1-jaehoon1744@gmail.com> X-Mailer: git-send-email 2.56.1 In-Reply-To: <20261112040143.6945-1-jaehoon1744@gmail.com> References: <20261112040143.6945-1-jaehoon1744@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: JaeHoon Kim Hi Shuming, Please disregard this RFC. The BIOS init values are not needed: the stock rt1320 driver works on this machine. While narrowing the register groups down (after the Sashiko review, which correctly pointed out that my table dropped the two PDE23 entries and that 0x1000db15-0x1000db23 is the same command list in a different order, not an L/R swap), the baseline with no BIOS values also played sound. I then retested the unmodified v7.2.15 rt1320 driver, with only the two ACP patches Mark applied, in three boot scenarios: boot amp func_status speaker cold boot (power fully removed) 0x61 works warm reboot Linux -> Linux 0x41 works Windows (speaker used) -> warm reboot 0x43 works v7.2.15 has no audio related changes compared to v7.2.14, so I cannot explain the silence I saw earlier on v7.2.14. It is no longer reproducible; it may have been a stale amplifier state left over from my earlier experiments. Once (also no longer reproducible) the RT1320 read back 0x81 for every register after a warm reboot, which only a full power removal cleared. I will report back if either problem shows up again. The remaining open point is the one from before: no DSP firmware / RAE files are loaded for this machine, so the speaker protection set up on Windows is not active on Linux. If Realtek can provide those files for the LG gram 16Z95U (SSID 1854:056c), I am happy to test them. Sorry for the noise. Thanks, JaeHoon Kim