Re: [PATCH v3 1/4] mmc: core: expose MMC_CAP2_CQE* to dt
From: Ulf Hansson <hidden>
Date: 2020-03-04 13:05:33
Also in:
linux-devicetree, linux-mediatek, linux-mmc, lkml
On Mon, 17 Feb 2020 at 07:56, Chun-Hung Wu [off-list ref] wrote:
Expose MMC_CAP2_CQE and MMC_CAP2_CQE_DCMD to host->caps2 if 1. "supports-cqe" is defined in dt and 2. "disable-cqe-dcmd" is not defined in dt.
Both of these DT properties are defined as common mmc DT properties, so the above isn't really correct. Please clarify this. Moreover, I suggest to update commit message header into "mmc: core: Extend mmc_of_parse() to parse CQE bindings", as I think it better describes the change.
quoted hunk ↗ jump to hunk
Signed-off-by: Chun-Hung Wu <redacted> --- drivers/mmc/core/host.c | 8 ++++++++ 1 file changed, 8 insertions(+)diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 105b7a7..efb0dbe 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c@@ -319,6 +319,14 @@ int mmc_of_parse(struct mmc_host *host) host->caps2 |= MMC_CAP2_NO_SD; if (device_property_read_bool(dev, "no-mmc")) host->caps2 |= MMC_CAP2_NO_MMC; + if (device_property_read_bool(dev, "supports-cqe")) + host->caps2 |= MMC_CAP2_CQE; + + /* Must be after "supports-cqe" check */ + if (!device_property_read_bool(dev, "disable-cqe-dcmd")) { + if (host->caps2 & MMC_CAP2_CQE)
Does it really doesn't matter if we set this cap, even if MMC_CAP2_CQE isn't set? You can probably skip the check above.
+ host->caps2 |= MMC_CAP2_CQE_DCMD;
+ }
/* Must be after "non-removable" check */
if (device_property_read_u32(dev, "fixed-emmc-driver-type", &drv_type) == 0) {
--
1.9.1Kind regards Uffe _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel