Commit 8658f0ac authored by Peng Fan's avatar Peng Fan Committed by Abel Vesa
Browse files

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: default avatarPeng Fan <peng.fan@nxp.com>
Reviewed-by: default avatarAbel Vesa <abel.vesa@linaro.org>
Signed-off-by: default avatarAbel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20230104110032.1220721-3-peng.fan@oss.nxp.com
parent f4419db4

drivers/clk/imx/clk.c

+9 −3
Original line number Diff line number Diff line
@@ -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 */