[PATCH 2/2] clk: imx7d: Add the IPG root clock

Kevin Hilman khilman at baylibre.com
Wed Jan 25 21:24:27 PST 2017


Hi Fabio,

On Wed, Jan 18, 2017 at 9:53 AM, Fabio Estevam <fabio.estevam at nxp.com> wrote:
> Add an entry for the IMX7D_IPG_ROOT clock.
>
> Signed-off-by: Fabio Estevam <fabio.estevam at nxp.com>

kernelci.org started detecting boot failures on imx7s-warp in
next-20160124[1], and I bisected it down to this patch, which is in
linux-next as commit dde08302c083.

I verified that reverting that commit on top of next-20160124 gets
imx7s-warp booting again.

Kevin

P.S.  Thanks for the donation of the imx7s-warp board, which allows us
to catch these failures early.  :)

[1] https://kernelci.org/boot/id/588747e959b514e08213d106/

> ---
>  drivers/clk/imx/clk-imx7d.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c
> index ae1d31b..1705f44 100644
> --- a/drivers/clk/imx/clk-imx7d.c
> +++ b/drivers/clk/imx/clk-imx7d.c
> @@ -788,7 +788,7 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node)
>         clks[IMX7D_WRCLK_ROOT_DIV] = imx_clk_divider2("wrclk_post_div", "wrclk_pre_div", base + 0xbd00, 0, 6);
>         clks[IMX7D_CLKO1_ROOT_DIV] = imx_clk_divider2("clko1_post_div", "clko1_pre_div", base + 0xbd80, 0, 6);
>         clks[IMX7D_CLKO2_ROOT_DIV] = imx_clk_divider2("clko2_post_div", "clko2_pre_div", base + 0xbe00, 0, 6);
> -
> +       clks[IMX7D_IPG_ROOT_CLK] = imx_clk_divider2("ipg_root_clk", "ahb_root_clk", base + 0x9080, 0, 2);
>         clks[IMX7D_ARM_A7_ROOT_CLK] = imx_clk_gate4("arm_a7_root_clk", "arm_a7_div", base + 0x4000, 0);
>         clks[IMX7D_ARM_M4_ROOT_CLK] = imx_clk_gate4("arm_m4_root_clk", "arm_m4_div", base + 0x4010, 0);
>         clks[IMX7D_ARM_M0_ROOT_CLK] = imx_clk_gate4("arm_m0_root_clk", "arm_m0_div", base + 0x4020, 0);
> --
> 2.7.4
>
>
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