On Wed, Feb 02, 2022 at 08:55:24PM +0100, Ahmad Fatoum wrote:
> cpu_is_mx6* and imx_silicon_revision access static variables only
> initialized in imx_init(). Use the alternative functions instead, that
> will always consult the hardware to determine the version.
> This requires us to know beforehand that we run on an i.MX6, but this
> is a given when probing the imx6-ccm driver.
>
> Other instances of this issue were removed in 37bc313add40 ("clk: imx6:
> fix use of cpu_is_mx6* before they are initialized"), but this instance
> was reintroduced as part of b534f79112f0 ("clk: imx6: Fix procedure to
> switch the parent of LDB_DI_CLK").
>
> This change only affects i.MX6D/Q SoCs with exactly revision 1.0 and
> aligns their behavior to that of the Linux clock driver.
>
> Fixes: b534f79112f0 ("clk: imx6: Fix procedure to switch the parent of LDB_DI_CLK")
> Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
> ---
> drivers/clk/imx/clk-imx6.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Applied, thanks
Sascha
>
> diff --git a/drivers/clk/imx/clk-imx6.c b/drivers/clk/imx/clk-imx6.c
> index 6935a8e85292..e3afcf7858bb 100644
> --- a/drivers/clk/imx/clk-imx6.c
> +++ b/drivers/clk/imx/clk-imx6.c
> @@ -60,8 +60,8 @@ static inline int cpu_mx6_is_plus(void)
>
> /* Audio/Video PLL post dividers don't work on i.MX6q revision 1.0 */
> static inline int cpu_has_working_video_pll_post_div(void) {
> - return !((cpu_is_mx6q() || cpu_is_mx6d()) &&
> - imx_silicon_revision() == IMX_CHIP_REV_1_0);
> + return !((cpu_mx6_is_mx6q() || cpu_mx6_is_mx6d()) &&
> + __imx6_cpu_revision() == IMX_CHIP_REV_1_0);
> }
>
> /* i.MX6 Quad/Dual/DualLite/Solo are all affected */
> --
> 2.30.2
>
>
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