From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Vasut Date: Tue, 19 Jan 2021 00:58:33 +0100 Subject: [PATCH 3/3] spi: imx: Use clock framework if enabled In-Reply-To: <20210118235833.550265-1-marex@denx.de> References: <20210118235833.550265-1-marex@denx.de> Message-ID: <20210118235833.550265-3-marex@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de In case the clock framework is enabled, enable the SPI controller clock and obtain max frequency from the clock framework. Signed-off-by: Marek Vasut Cc: Jagan Teki Cc: Stefano Babic --- drivers/spi/mxc_spi.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c index 849808fb916..3377200d24f 100644 --- a/drivers/spi/mxc_spi.c +++ b/drivers/spi/mxc_spi.c @@ -4,6 +4,7 @@ */ #include +#include #include #include #include @@ -617,8 +618,19 @@ static int mxc_spi_probe(struct udevice *bus) if (mxcs->base == FDT_ADDR_T_NONE) return -ENODEV; +#if CONFIG_IS_ENABLED(CLK) + struct clk clk; + ret = clk_get_by_index(bus, 0, &clk); + if (ret) + return ret; + + clk_enable(&clk); + + mxcs->max_hz = clk_get_rate(&clk); +#else mxcs->max_hz = fdtdec_get_int(blob, node, "spi-max-frequency", 20000000); +#endif return 0; } -- 2.29.2