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([2a01:e0a:106d:1080:5788:c4e1:cf35:7211]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4957bfb20ddsm254637715e9.3.2026.07.28.01.34.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 28 Jul 2026 01:34:47 -0700 (PDT) Message-ID: <822ff7be-7d89-4523-99c6-051fcda9efaf@linaro.org> Date: Tue, 28 Jul 2026 10:34:47 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Neil Armstrong Subject: Re: [PATCH 2/3] pmdomain: amlogic: Add support for A9 power domains controller To: xianwei.zhao@amlogic.com, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Jianxin Pan , Ulf Hansson Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org References: <20260722-a9-pm-v1-0-1fe20a44bf2d@amlogic.com> <20260722-a9-pm-v1-2-1fe20a44bf2d@amlogic.com> Content-Language: en-US, fr Autocrypt: addr=neil.armstrong@linaro.org; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKk5laWwgQXJtc3Ryb25nIDxuZWlsLmFybXN0cm9uZ0BsaW5hcm8ub3JnPsLAkQQTAQoA OwIbIwULCQgHAwUVCgkICwUWAgMBAAIeAQIXgBYhBInsPQWERiF0UPIoSBaat7Gkz/iuBQJk Q5wSAhkBAAoJEBaat7Gkz/iuyhMIANiD94qDtUTJRfEW6GwXmtKWwl/mvqQtaTtZID2dos04 YqBbshiJbejgVJjy+HODcNUIKBB3PSLaln4ltdsV73SBcwUNdzebfKspAQunCM22Mn6FBIxQ GizsMLcP/0FX4en9NaKGfK6ZdKK6kN1GR9YffMJd2P08EO8mHowmSRe/ExAODhAs9W7XXExw UNCY4pVJyRPpEhv373vvff60bHxc1k/FF9WaPscMt7hlkbFLUs85kHtQAmr8pV5Hy9ezsSRa GzJmiVclkPc2BY592IGBXRDQ38urXeM4nfhhvqA50b/nAEXc6FzqgXqDkEIwR66/Gbp0t3+r yQzpKRyQif3OwE0ETVkGzwEIALyKDN/OGURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYp QTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXMcoJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+ SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hiSvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY 4yG6xI99NIPEVE9lNBXBKIlewIyVlkOaYvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoM Mtsyw18YoX9BqMFInxqYQQ3j/HpVgTSvmo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUX oUk33HEAEQEAAcLAXwQYAQIACQUCTVkGzwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfn M7IbRuiSZS1unlySUVYu3SD6YBYnNi3G5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa3 3eDIHu/zr1HMKErm+2SD6PO9umRef8V82o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCS KmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy 4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJC3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTT QbM0WUIBIcGmq38+OgUsMYu4NzLu7uZFAcmp6h8g Organization: Linaro In-Reply-To: <20260722-a9-pm-v1-2-1fe20a44bf2d@amlogic.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260728_013450_529305_BD109666 X-CRM114-Status: GOOD ( 16.34 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Neil Armstrong Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On 7/22/26 10:39, Xianwei Zhao via B4 Relay wrote: > From: Xianwei Zhao > > Add support for the A9 power controller, whose registers are > in the secure domain and should be accessed via SMC. > > Signed-off-by: Xianwei Zhao > --- > drivers/pmdomain/amlogic/meson-secure-pwrc.c | 69 ++++++++++++++++++++++++++++ > 1 file changed, 69 insertions(+) > > diff --git a/drivers/pmdomain/amlogic/meson-secure-pwrc.c b/drivers/pmdomain/amlogic/meson-secure-pwrc.c > index 1d2f371d2d7f..133549956efa 100644 > --- a/drivers/pmdomain/amlogic/meson-secure-pwrc.c > +++ b/drivers/pmdomain/amlogic/meson-secure-pwrc.c > @@ -16,6 +16,7 @@ > #include > #include > #include > +#include > #include > #include > #include > @@ -175,6 +176,65 @@ static const struct meson_secure_pwrc_domain_desc a5_pwrc_domains[] = { > SEC_PD(A5_DSPA, 0), > }; > > +static const struct meson_secure_pwrc_domain_desc a9_pwrc_domains[] = { > + SEC_PD(A9_DSPA, 0), > + SEC_PD(A9_U3HSG_U3, 0), > + SEC_PD(A9_DP, 0), > + SEC_PD(A9_DOS_HCODEC, 0), > + SEC_PD(A9_TAHOE, 0), > + SEC_PD(A9_DOS_HEVC, 0), > + SEC_PD(A9_U2H, 0), > + SEC_PD(A9_U3DRD_B, 0), > + SEC_PD(A9_VPU_HDMI, 0), > + SEC_PD(A9_U2DRD, 0), > + SEC_PD(A9_U3DRD_A, 0), > + SEC_PD(A9_SD_EMMC_C, 0), > + SEC_PD(A9_GE2D, 0), > + SEC_PD(A9_AMFC, 0), > + SEC_PD(A9_EDPTX, 0), > + SEC_PD(A9_OPP, 0), > + SEC_PD(A9_VICP, 0), > + SEC_PD(A9_SD_EMMC_A, 0), > + SEC_PD(A9_SD_EMMC_B, 0), > + SEC_PD(A9_ETH, 0), > + SEC_PD(A9_PCIE_A, 0), > + SEC_PD(A9_PCIE_B, 0), > + SEC_PD(A9_NNA_4T, 0), > + SEC_PD(A9_HDMIRX, 0), > + SEC_PD(A9_CVE, 0), > + SEC_PD(A9_ISP, 0), > + SEC_PD(A9_ETH_1G, 0), > + SEC_PD(A9_U3HSG_HSG, 0), > + SEC_PD(A9_U3DPPHY_U3, 0), > + SEC_PD(A9_U3DPPHY_DP, 0), > + SEC_PD(A9_PCIE3PHY, 0), > + SEC_PD(A9_U3HSG_PCIE2, 0), > + SEC_PD(A9_MALI_TOP, 0), > + SEC_PD(A9_AO_SED, 0), > + SEC_PD(A9_AO_IR, 0), > + /* UART_B is for console log, and should be always on */ > + SEC_PD(A9_AO_UART_B, GENPD_FLAG_ALWAYS_ON), > + SEC_PD(A9_AO_UART_C, 0), > + SEC_PD(A9_AO_UART_D, 0), > + SEC_PD(A9_AO_SPISG, 0), > + SEC_PD(A9_AO_UART_E, 0), > + SEC_PD(A9_AO_CEC, 0), > + /* SRAMA is used as ATF runtime memory, and should be always on */ > + SEC_PD(A9_EE_SRAMA, GENPD_FLAG_ALWAYS_ON), > + SEC_PD(A9_AUDIO, 0), > + /* DMC0 is for DDR PHY ana/dig and DMC, and should be always on */ > + SEC_PD(A9_DMC0, GENPD_FLAG_ALWAYS_ON), > + /*GIC needs to be used consistently, and should be always on */ > + SEC_PD(A9_GIC, GENPD_FLAG_ALWAYS_ON), > + /* DDRPHY is for DDR Work, and should be always on */ > + SEC_PD(A9_DDRPHY, GENPD_FLAG_ALWAYS_ON), > + SEC_PD(A9_AUCPU, 0), > + SEC_PD(A9_DSI0, 0), > + SEC_PD(A9_DSI1, 0), > + SEC_PD(A9_CAN0, 0), > + SEC_PD(A9_CAN1, 0), > +}; > + > static const struct meson_secure_pwrc_domain_desc c3_pwrc_domains[] = { > SEC_PD(C3_NNA, 0), > SEC_PD(C3_AUDIO, 0), > @@ -425,6 +485,11 @@ static const struct meson_secure_pwrc_domain_data amlogic_secure_a5_pwrc_data = > .count = ARRAY_SIZE(a5_pwrc_domains), > }; > > +static const struct meson_secure_pwrc_domain_data amlogic_secure_a9_pwrc_data = { > + .domains = a9_pwrc_domains, > + .count = ARRAY_SIZE(a9_pwrc_domains), > +}; > + > static const struct meson_secure_pwrc_domain_data amlogic_secure_c3_pwrc_data = { > .domains = c3_pwrc_domains, > .count = ARRAY_SIZE(c3_pwrc_domains), > @@ -468,6 +533,10 @@ static const struct of_device_id meson_secure_pwrc_match_table[] = { > .compatible = "amlogic,a5-pwrc", > .data = &amlogic_secure_a5_pwrc_data, > }, > + { > + .compatible = "amlogic,a9-pwrc", > + .data = &amlogic_secure_a9_pwrc_data, > + }, > { > .compatible = "amlogic,c3-pwrc", > .data = &amlogic_secure_c3_pwrc_data, > Reviewed-by: Neil Armstrong Thanks, Neil _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic