diff options
| author | Peng Fan <peng.fan@nxp.com> | 2023-01-04 14:00:30 +0300 |
|---|---|---|
| committer | Abel Vesa <abel.vesa@linaro.org> | 2023-01-29 21:29:26 +0300 |
| commit | 8658f0acc8b0ab67f66b028e8f6136038b7b7379 (patch) | |
| tree | d45689e25d5e36e6221e127d4feab65256584347 | |
| parent | f4419db4086e8c31821da14140e81498516a3c75 (diff) | |
| download | linux-8658f0acc8b0ab67f66b028e8f6136038b7b7379.tar.xz | |
clk: imx: get stdout clk count from device tree
Currently the clk_count is specified by API users, but this
parameter is wrongly used, for example, i.MX8M clk driver use 4,
however the uart device tree node only use 2 clock entries. So
let using of_clk_get_parent_count to get the exact clock count.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20230104110032.1220721-3-peng.fan@oss.nxp.com
| -rw-r--r-- | drivers/clk/imx/clk.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/clk/imx/clk.c b/drivers/clk/imx/clk.c index 5b73a477f11f..df810f0ee16d 100644 --- a/drivers/clk/imx/clk.c +++ b/drivers/clk/imx/clk.c @@ -167,6 +167,8 @@ __setup_param("earlyprintk", imx_keep_uart_earlyprintk, void imx_register_uart_clocks(unsigned int clk_count) { + unsigned int num __maybe_unused; + imx_enabled_uart_clocks = 0; /* i.MX boards use device trees now. For build tests without CONFIG_OF, do nothing */ @@ -174,14 +176,18 @@ void imx_register_uart_clocks(unsigned int clk_count) if (imx_keep_uart_clocks) { int i; - imx_uart_clocks = kcalloc(clk_count, sizeof(struct clk *), GFP_KERNEL); - if (!imx_uart_clocks) + num = of_clk_get_parent_count(of_stdout); + if (!num) return; if (!of_stdout) return; - for (i = 0; i < clk_count; i++) { + imx_uart_clocks = kcalloc(num, sizeof(struct clk *), GFP_KERNEL); + if (!imx_uart_clocks) + return; + + for (i = 0; i < num; i++) { imx_uart_clocks[imx_enabled_uart_clocks] = of_clk_get(of_stdout, i); /* Stop if there are no more of_stdout references */ |