On 23. 10. 18. 15:16, Sascha Hauer wrote:
> According to the downstream driver the DDRMON_CTRL_LPDDR23 bit must be
> set for both LPDDR2 and LPDDR3. Add the missing LPDDR2 case and while
> at it turn the if/else if/else into switch/case which makes it easier
> to read.
>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
> Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
> Acked-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
> Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> ---
> drivers/devfreq/event/rockchip-dfi.c | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c
> index 571d72d1abd1c..8ce0191552ef1 100644
> --- a/drivers/devfreq/event/rockchip-dfi.c
> +++ b/drivers/devfreq/event/rockchip-dfi.c
> @@ -83,12 +83,19 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev)
> DDRMON_CTRL_HARDWARE_EN), dfi_regs + DDRMON_CTRL);
>
> /* set ddr type to dfi */
> - if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3)
> + switch (dfi->ddr_type) {
> + case ROCKCHIP_DDRTYPE_LPDDR2:
> + case ROCKCHIP_DDRTYPE_LPDDR3:
> writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR23, DDRMON_CTRL_DDR_TYPE_MASK),
> dfi_regs + DDRMON_CTRL);
> - else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4)
> + break;
> + case ROCKCHIP_DDRTYPE_LPDDR4:
> writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK),
> dfi_regs + DDRMON_CTRL);
> + break;
> + default:
> + break;
> + }
>
> /* enable count, use software mode */
> writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN),
Acked-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
--
Best Regards,
Samsung Electronics
Chanwoo Choi
