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Message-ID: <CAK00qKDW1S9qRJEavKou3n_LOTJnaTOGyi=U1XqUvSDjZ31fDg@mail.gmail.com>
Date: Wed, 22 May 2024 17:04:40 +0800
From: Victor Shih <victorshihgli@...il.com>
To: Adrian Hunter <adrian.hunter@...el.com>
Cc: ulf.hansson@...aro.org, linux-mmc@...r.kernel.org, 
	linux-kernel@...r.kernel.org, benchuanggli@...il.com, 
	HL.Liu@...esyslogic.com.tw, Greg.tu@...esyslogic.com.tw, 
	takahiro.akashi@...aro.org, dlunev@...omium.org, 
	Ben Chuang <ben.chuang@...esyslogic.com.tw>, 
	Victor Shih <victor.shih@...esyslogic.com.tw>
Subject: Re: [PATCH V14 16/21] mmc: sdhci-uhs2: add request() and others

On Tue, Jan 30, 2024 at 11:31 PM Adrian Hunter <adrian.hunter@...elcom> wrote:
>
> On 23/01/24 08:28, Victor Shih wrote:
> > From: Victor Shih <victor.shih@...esyslogic.com.tw>
> >
> > This is a sdhci version of mmc's request operation.
> > It covers both UHS-I and UHS-II.
> >
> > Signed-off-by: Ben Chuang <ben.chuang@...esyslogic.com.tw>
> > Signed-off-by: AKASHI Takahiro <takahiro.akashi@...aro.org>
> > Signed-off-by: Victor Shih <victor.shih@...esyslogic.com.tw>
> > ---
> >
> > Updates in V14:
> >  - Use mmc_card_uhs2() to stead sdhci_uhs2_mode() in the
> >    sdhci_uhs2_request().
> >
> > Updates in V13:
> >  - Re-order function to avoid declaration.
> >  - Remove unnecessary function.
> >
> > Updates in V11:
> >  - Drop the check mmc_card_uhs2_hd_mode(host->mmc)
> >    in sdhci_uhs2_set_transfer_mode().
> >
> > Updates in V10:
> >  - Use tmode_half_duplex to instead of uhs2_tmode0_flag
> >    in sdhci_uhs2_set_transfer_mode().
> >
> > Updates in V9:
> >  - Modify the annotations in __sdhci_uhs2_send_command().
> >
> > Updates in V8:
> >  - Adjust the position of matching brackets in
> >    sdhci_uhs2_send_command_retry().
> >  - Modify CameCase definition in __sdhci_uhs2_finish_command().
> >  - Modify error message in __sdhci_uhs2_finish_command().
> >  - sdhci_uhs2_send_command_retry() to instead of sdhci_uhs2_send_command()
> >    in sdhci_uhs2_request().
> >  - Use sdhci_uhs2_mode() to simplify code in sdhci_uhs2_request_atomic().
> >  - Add forward declaration for sdhci_send_command().
> >
> > Updates in V7:
> >  - Cancel export state of some functions.
> >  - Remove unnecessary whitespace changes.
> >
> > Updates in V6:
> >  - Add uhs2_dev_cmd() to simplify code.
> >  - Remove unnecessary functions.
> >  - Cancel export state of some functions.
> >  - Drop use CONFIG_MMC_DEBUG().
> >  - Wrap at 100 columns in some functions.
> >
> > ---
> >
> >  drivers/mmc/host/sdhci-uhs2.c | 379 +++++++++++++++++++++++++++++++++-
> >  drivers/mmc/host/sdhci.c      |  49 +++--
> >  drivers/mmc/host/sdhci.h      |   8 +
> >  3 files changed, 420 insertions(+), 16 deletions(-)
> >
> > diff --git a/drivers/mmc/host/sdhci-uhs2.c b/drivers/mmc/host/sdhci-uhs2.c
> > index 0c543899ed6c..b47bcf6f890f 100644
> > --- a/drivers/mmc/host/sdhci-uhs2.c
> > +++ b/drivers/mmc/host/sdhci-uhs2.c
> > @@ -14,6 +14,8 @@
> >  #include <linux/module.h>
> >  #include <linux/iopoll.h>
> >  #include <linux/bitfield.h>
> > +#include <linux/mmc/mmc.h>
> > +#include <linux/mmc/host.h>
> >
> >  #include "sdhci.h"
> >  #include "sdhci-uhs2.h"
> > @@ -29,6 +31,8 @@
> >  #define UHS2_INTERFACE_DETECT_TIMEOUT_100MS  100000
> >  #define UHS2_LANE_SYNC_TIMEOUT_150MS         150000
> >
> > +#define UHS2_ARG_IOADR_MASK 0xfff
> > +
> >  void sdhci_uhs2_dump_regs(struct sdhci_host *host)
> >  {
> >       if (!(mmc_card_uhs2(host->mmc)))
> > @@ -63,6 +67,11 @@ EXPORT_SYMBOL_GPL(sdhci_uhs2_dump_regs);
> >   *                                                                           *
> >  \*****************************************************************************/
> >
> > +static inline u16 uhs2_dev_cmd(struct mmc_command *cmd)
> > +{
> > +     return be16_to_cpu((__be16)cmd->uhs2_cmd->arg) & UHS2_ARG_IOADR_MASK;
> > +}
> > +
> >  static inline int mmc_opt_regulator_set_ocr(struct mmc_host *mmc,
> >                                           struct regulator *supply,
> >                                           unsigned short vdd_bit)
> > @@ -140,7 +149,7 @@ static void sdhci_uhs2_set_power(struct sdhci_host *host, unsigned char mode, un
> >
> >  static u8 sdhci_calc_timeout_uhs2(struct sdhci_host *host, u8 *cmd_res, u8 *dead_lock)
> >  {
> > -     /* timeout in us */
> > +     /* timeout in us */#define UHS2_ARG_IOADR_MASK 0xfff
>
> Extraneous "#define UHS2_ARG_IOADR_MASK 0xfff"
>
>

Hi, Adrian

I will fix this issue in patch series v16.
Please help review changes in patch series v16.

Thanks, Victor Shih

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