Messages in this thread | | | From | Ping-Ke Shih <> | Subject | RE: [RFC PATCH v1 13/19] rtw88: mac: Add support for SDIO specifics in the power on sequence | Date | Thu, 29 Dec 2022 01:14:57 +0000 |
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> -----Original Message----- > From: Martin Blumenstingl <martin.blumenstingl@googlemail.com> > Sent: Wednesday, December 28, 2022 7:30 AM > To: linux-wireless@vger.kernel.org > Cc: Yan-Hsuan Chuang <tony0620emma@gmail.com>; Kalle Valo <kvalo@kernel.org>; Ulf Hansson > <ulf.hansson@linaro.org>; linux-kernel@vger.kernel.org; netdev@vger.kernel.org; > linux-mmc@vger.kernel.org; Chris Morgan <macroalpha82@gmail.com>; Nitin Gupta <nitin.gupta981@gmail.com>; > Neo Jou <neojou@gmail.com>; Ping-Ke Shih <pkshih@realtek.com>; Jernej Skrabec <jernej.skrabec@gmail.com>; > Martin Blumenstingl <martin.blumenstingl@googlemail.com> > Subject: [RFC PATCH v1 13/19] rtw88: mac: Add support for SDIO specifics in the power on sequence > > Add the code specific to SDIO HCI in the MAC power on sequence. This is > based on the RTL8822BS and RTL8822CS vendor drivers. > > Co-developed-by: Jernej Skrabec <jernej.skrabec@gmail.com> > Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com> > Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> > --- > drivers/net/wireless/realtek/rtw88/mac.c | 41 ++++++++++++++++++++++-- > 1 file changed, 39 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/wireless/realtek/rtw88/mac.c b/drivers/net/wireless/realtek/rtw88/mac.c > index 8e1fa824b32b..ad71f9838d1d 100644 > --- a/drivers/net/wireless/realtek/rtw88/mac.c > +++ b/drivers/net/wireless/realtek/rtw88/mac.c > @@ -7,6 +7,7 @@ > #include "reg.h" > #include "fw.h" > #include "debug.h" > +#include "sdio.h" > > void rtw_set_channel_mac(struct rtw_dev *rtwdev, u8 channel, u8 bw, > u8 primary_ch_idx) > @@ -60,6 +61,7 @@ EXPORT_SYMBOL(rtw_set_channel_mac); > > static int rtw_mac_pre_system_cfg(struct rtw_dev *rtwdev) > { > + unsigned int retry; > u32 value32; > u8 value8; > > @@ -77,6 +79,26 @@ static int rtw_mac_pre_system_cfg(struct rtw_dev *rtwdev) > case RTW_HCI_TYPE_PCIE: > rtw_write32_set(rtwdev, REG_HCI_OPT_CTRL, BIT_USB_SUS_DIS); > break; > + case RTW_HCI_TYPE_SDIO: > + rtw_write8_clr(rtwdev, REG_SDIO_HSUS_CTRL, BIT(0));
BIT_HCI_SUS_REQ BIT(0)
> + > + for (retry = 0; retry < RTW_PWR_POLLING_CNT; retry++) { > + if (rtw_read8(rtwdev, REG_SDIO_HSUS_CTRL) & BIT(1))
BIT_HCI_RESUME_RDY BIT(1)
> + break; > + > + usleep_range(10, 50); > + } > + > + if (retry == RTW_PWR_POLLING_CNT) { > + rtw_err(rtwdev, "failed to poll REG_SDIO_HSUS_CTRL[1]"); > + return -ETIMEDOUT; > + } > + > + if (rtw_sdio_is_sdio30_supported(rtwdev)) > + rtw_write8_set(rtwdev, REG_HCI_OPT_CTRL + 2, BIT(2));
BIT_USB_LPM_ACT_EN BIT(10) // reg_addr +2, so bit >> 8
> + else > + rtw_write8_clr(rtwdev, REG_HCI_OPT_CTRL + 2, BIT(2)); > + break; > case RTW_HCI_TYPE_USB: > break; > default:
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