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Mon, 15 Jun 2020 04:41:51 -0400 (EDT) From: Maxime Ripard To: Nicolas Saenz Julienne Subject: [PATCH v5 20/27] clk: bcm: rpi: Add an enum for the firmware clocks Date: Mon, 15 Jun 2020 10:41:00 +0200 Message-Id: <4738f77ee7de9b48a3bb1c558ead958d0cc064d9.1592210452.git-series.maxime@cerno.tech> X-Mailer: git-send-email 2.26.2 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200615_014153_608351_B8A5227D X-CRM114-Status: UNSURE ( 9.38 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Tim Gover , Dave Stevenson , Stephen Boyd , Mike Turquette , linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, Philipp Zabel , Phil Elwell , linux-arm-kernel@lists.infradead.org, Maxime Ripard Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org While the firmware allows us to discover the available clocks, we need to discriminate those clocks to only register the ones meaningful to Linux. The firmware also doesn't provide a clock name, so having a list of the ID will help us to give clocks a proper name later on. Acked-by: Nicolas Saenz Julienne Tested-by: Nicolas Saenz Julienne Signed-off-by: Maxime Ripard --- drivers/clk/bcm/clk-raspberrypi.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index 5f4e2d49432f..eebd16040f8a 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -18,7 +18,23 @@ #include -#define RPI_FIRMWARE_ARM_CLK_ID 0x00000003 +enum rpi_firmware_clk_id { + RPI_FIRMWARE_EMMC_CLK_ID = 1, + RPI_FIRMWARE_UART_CLK_ID, + RPI_FIRMWARE_ARM_CLK_ID, + RPI_FIRMWARE_CORE_CLK_ID, + RPI_FIRMWARE_V3D_CLK_ID, + RPI_FIRMWARE_H264_CLK_ID, + RPI_FIRMWARE_ISP_CLK_ID, + RPI_FIRMWARE_SDRAM_CLK_ID, + RPI_FIRMWARE_PIXEL_CLK_ID, + RPI_FIRMWARE_PWM_CLK_ID, + RPI_FIRMWARE_HEVC_CLK_ID, + RPI_FIRMWARE_EMMC2_CLK_ID, + RPI_FIRMWARE_M2MC_CLK_ID, + RPI_FIRMWARE_PIXEL_BVB_CLK_ID, + RPI_FIRMWARE_NUM_CLK_ID, +}; #define RPI_FIRMWARE_STATE_ENABLE_BIT BIT(0) #define RPI_FIRMWARE_STATE_WAIT_BIT BIT(1) @@ -31,8 +47,6 @@ #define A2W_PLL_FRAC_BITS 20 -#define NUM_FW_CLKS 16 - struct raspberrypi_clk { struct device *dev; struct rpi_firmware *firmware; @@ -320,7 +334,8 @@ static int raspberrypi_clk_probe(struct platform_device *pdev) rpi->firmware = firmware; platform_set_drvdata(pdev, rpi); - clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, NUM_FW_CLKS), + clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, + RPI_FIRMWARE_NUM_CLK_ID), GFP_KERNEL); if (!clk_data) return -ENOMEM; -- git-series 0.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel