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Date: Tue, 3 Dec 2013 10:55:41 +0000
From: Lee Jones <lee.jones@...aro.org>
To: micky_ching@...lsil.com.cn
Cc: sameo@...ux.intel.com, devel@...uxdriverproject.org,
linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
wei_wang@...lsil.com.cn, rogerable@...ltek.com
Subject: Re: [PATCH v2 1/3] mfd: rtsx: reduce code duplication in rtl8411
> From: Micky Ching <micky_ching@...lsil.com.cn>
>
> in order to remove duplicated code in rtl8411, we make 8411 as the base
> init params, and other like-8411 chips will just change the different
> value with 8411, this can save some source code.
>
> Signed-off-by: Lee Jones <lee.jones@...aro.org>
I haven't signed this version off.
I'm still confused what the difference between the versions are. I
submitted a patch just like this one, which you responded to with only
a single fix. Then you've submitted a slightly different version? What
makes this version different/better?
> Signed-off-by: Micky Ching <micky_ching@...lsil.com.cn>
> ---
> drivers/mfd/rtl8411.c | 63 +++++++++---------------------------------------
> drivers/mfd/rtsx_pcr.h | 8 ++++++
> 2 files changed, 19 insertions(+), 52 deletions(-)
>
> diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c
> index 5280135..c9eab9d 100644
> --- a/drivers/mfd/rtl8411.c
> +++ b/drivers/mfd/rtl8411.c
> @@ -279,7 +279,7 @@ static int rtl8411_conv_clk_and_div_n(int input, int dir)
> return output;
> }
>
> -static const struct pcr_ops rtl8411_pcr_ops = {
> +static struct pcr_ops rtl8411_pcr_ops = {
> .fetch_vendor_settings = rtl8411_fetch_vendor_settings,
> .extra_init_hw = rtl8411_extra_init_hw,
> .optimize_phy = NULL,
> @@ -295,22 +295,6 @@ static const struct pcr_ops rtl8411_pcr_ops = {
> .force_power_down = rtl8411_force_power_down,
> };
>
> -static const struct pcr_ops rtl8411b_pcr_ops = {
> - .fetch_vendor_settings = rtl8411b_fetch_vendor_settings,
> - .extra_init_hw = rtl8411b_extra_init_hw,
> - .optimize_phy = NULL,
> - .turn_on_led = rtl8411_turn_on_led,
> - .turn_off_led = rtl8411_turn_off_led,
> - .enable_auto_blink = rtl8411_enable_auto_blink,
> - .disable_auto_blink = rtl8411_disable_auto_blink,
> - .card_power_on = rtl8411_card_power_on,
> - .card_power_off = rtl8411_card_power_off,
> - .switch_output_voltage = rtl8411_switch_output_voltage,
> - .cd_deglitch = rtl8411_cd_deglitch,
> - .conv_clk_and_div_n = rtl8411_conv_clk_and_div_n,
> - .force_power_down = rtl8411_force_power_down,
> -};
> -
> /* SD Pull Control Enable:
> * SD_DAT[3:0] ==> pull up
> * SD_CD ==> pull up
> @@ -456,45 +440,20 @@ void rtl8411_init_params(struct rtsx_pcr *pcr)
> pcr->rx_initial_phase = SET_CLOCK_PHASE(4, 3, 10);
>
> pcr->ic_version = rtl8411_get_ic_version(pcr);
> - pcr->sd_pull_ctl_enable_tbl = rtl8411_sd_pull_ctl_enable_tbl;
> - pcr->sd_pull_ctl_disable_tbl = rtl8411_sd_pull_ctl_disable_tbl;
> - pcr->ms_pull_ctl_enable_tbl = rtl8411_ms_pull_ctl_enable_tbl;
> - pcr->ms_pull_ctl_disable_tbl = rtl8411_ms_pull_ctl_disable_tbl;
> +
> + set_pull_ctrl_tables(rtl8411);
> }
>
> void rtl8411b_init_params(struct rtsx_pcr *pcr)
> {
> - pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
> - pcr->num_slots = 2;
> - pcr->ops = &rtl8411b_pcr_ops;
> -
> - pcr->flags = 0;
> - pcr->card_drive_sel = RTL8411_CARD_DRIVE_DEFAULT;
> - pcr->sd30_drive_sel_1v8 = DRIVER_TYPE_B;
> - pcr->sd30_drive_sel_3v3 = DRIVER_TYPE_D;
> - pcr->aspm_en = ASPM_L1_EN;
> - pcr->tx_initial_phase = SET_CLOCK_PHASE(23, 7, 14);
> - pcr->rx_initial_phase = SET_CLOCK_PHASE(4, 3, 10);
> + rtl8411_init_params(pcr);
>
> - pcr->ic_version = rtl8411_get_ic_version(pcr);
> + rtl8411_pcr_ops.fetch_vendor_settings =
> + rtl8411b_fetch_vendor_settings;
> + rtl8411_pcr_ops.extra_init_hw = rtl8411b_extra_init_hw;
>
> - if (rtl8411b_is_qfn48(pcr)) {
> - pcr->sd_pull_ctl_enable_tbl =
> - rtl8411b_qfn48_sd_pull_ctl_enable_tbl;
> - pcr->sd_pull_ctl_disable_tbl =
> - rtl8411b_qfn48_sd_pull_ctl_disable_tbl;
> - pcr->ms_pull_ctl_enable_tbl =
> - rtl8411b_qfn48_ms_pull_ctl_enable_tbl;
> - pcr->ms_pull_ctl_disable_tbl =
> - rtl8411b_qfn48_ms_pull_ctl_disable_tbl;
> - } else {
> - pcr->sd_pull_ctl_enable_tbl =
> - rtl8411b_qfn64_sd_pull_ctl_enable_tbl;
> - pcr->sd_pull_ctl_disable_tbl =
> - rtl8411b_qfn64_sd_pull_ctl_disable_tbl;
> - pcr->ms_pull_ctl_enable_tbl =
> - rtl8411b_qfn64_ms_pull_ctl_enable_tbl;
> - pcr->ms_pull_ctl_disable_tbl =
> - rtl8411b_qfn64_ms_pull_ctl_disable_tbl;
> - }
> + if (rtl8411b_is_qfn48(pcr))
> + set_pull_ctrl_tables(rtl8411b_qfn48);
> + else
> + set_pull_ctrl_tables(rtl8411b_qfn64);
> }
> diff --git a/drivers/mfd/rtsx_pcr.h b/drivers/mfd/rtsx_pcr.h
> index 947e79b..26b52ec 100644
> --- a/drivers/mfd/rtsx_pcr.h
> +++ b/drivers/mfd/rtsx_pcr.h
> @@ -63,4 +63,12 @@ static inline u8 map_sd_drive(int idx)
> #define rtl8411_reg_to_sd30_drive_sel_3v3(reg) (((reg) >> 5) & 0x07)
> #define rtl8411b_reg_to_sd30_drive_sel_3v3(reg) ((reg) & 0x03)
>
> +#define set_pull_ctrl_tables(__device) \
> +do { \
> + pcr->sd_pull_ctl_enable_tbl = __device##_sd_pull_ctl_enable_tbl; \
> + pcr->sd_pull_ctl_disable_tbl = __device##_sd_pull_ctl_disable_tbl; \
> + pcr->ms_pull_ctl_enable_tbl = __device##_ms_pull_ctl_enable_tbl; \
> + pcr->ms_pull_ctl_disable_tbl = __device##_ms_pull_ctl_disable_tbl; \
> +} while (0)
> +
> #endif
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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