> -----Original Message----- > From: Harish Jenny K N [mailto:harish_kand...@mentor.com] > Sent: Wednesday, March 07, 2018 7:38 AM > To: ulf.hans...@linaro.org; linus.wall...@linaro.org; > adrian.hun...@intel.com; shawn....@rock-chips.com; Avri Altman > <avri.alt...@wdc.com>; andriy.shevche...@linux.intel.com > Cc: linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; > harish_kand...@mentor.com; vladimir_zapols...@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_r...@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_kand...@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
