Messages in this thread | | | From | Avri Altman <> | Subject | RE: [PATCH v6] mmc: Export host capabilities to debugfs. | Date | Wed, 7 Mar 2018 06:40:44 +0000 |
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> -----Original Message----- > From: Harish Jenny K N [mailto:harish_kandiga@mentor.com] > Sent: Wednesday, March 07, 2018 7:38 AM > To: ulf.hansson@linaro.org; linus.walleij@linaro.org; > adrian.hunter@intel.com; shawn.lin@rock-chips.com; Avri Altman > <Avri.Altman@wdc.com>; andriy.shevchenko@linux.intel.com > Cc: linux-mmc@vger.kernel.org; linux-kernel@vger.kernel.org; > harish_kandiga@mentor.com; Vladimir_Zapolskiy@mentor.com > Subject: [PATCH v6] mmc: Export host capabilities to debugfs. > > This patch exports the host capabilities to debugfs > > This idea of sharing host capabilities over debugfs came up from Abbas Raza > <Abbas_Raza@mentor.com> Earlier discussions: > https://lkml.org/lkml/2018/3/5/357 > https://www.spinics.net/lists/linux-mmc/msg48219.html > > Signed-off-by: Harish Jenny K N <harish_kandiga@mentor.com> > --- > > > +static int mmc_caps_show(struct seq_file *s, void *unused) { > + struct mmc_host *host = s->private; > + u32 caps = host->caps; > + > + seq_puts(s, "\nMMC Host capabilities are:\n"); > + seq_puts(s, > "=============================================\n"); > + seq_printf(s, "Can the host do 4 bit transfers :\t%s\n", > + ((caps & MMC_CAP_4_BIT_DATA) ? "Yes" : "No"));
Maybe use a more compact form, and just call a macro with the applicable (stringified) bit?
Thanks, Avri
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