From: Bard Liao <yung-chuan.liao@linux.intel.com>
To: alsa-devel@alsa-project.org, vkoul@kernel.org
Cc: pierre-louis.bossart@linux.intel.com, vinod.koul@linaro.org,
tiwai@suse.de, gregkh@linuxfoundation.org,
linux-kernel@vger.kernel.org, ranjani.sridharan@linux.intel.com,
hui.wang@canonical.com, broonie@kernel.org,
srinivas.kandagatla@linaro.org, jank@cadence.com,
mengdong.lin@intel.com, sanyog.r.kale@intel.com,
rander.wang@linux.intel.com, bard.liao@intel.com
Subject: [PATCH 1/2] soundwire: add definition for maximum number of ports
Date: Tue, 18 Aug 2020 01:47:26 +0800 [thread overview]
Message-ID: <20200817174727.15139-2-yung-chuan.liao@linux.intel.com> (raw)
In-Reply-To: <20200817174727.15139-1-yung-chuan.liao@linux.intel.com>
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
A Device may have at most 15 physical ports (DP0, DP1..DP14).
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
include/linux/soundwire/sdw.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 76052f12c9f7..0aa4c6af7554 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -38,7 +38,8 @@ struct sdw_slave;
#define SDW_FRAME_CTRL_BITS 48
#define SDW_MAX_DEVICES 11
-#define SDW_VALID_PORT_RANGE(n) ((n) <= 14 && (n) >= 1)
+#define SDW_MAX_PORTS 15
+#define SDW_VALID_PORT_RANGE(n) ((n) < SDW_MAX_PORTS && (n) >= 1)
enum {
SDW_PORT_DIRN_SINK = 0,
--
2.17.1
next prev parent reply other threads:[~2020-08-18 5:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-17 17:47 [PATCH 0/2] soundwire: fix port_ready[] dynamic allocation in Bard Liao
2020-08-17 17:47 ` Bard Liao [this message]
2020-08-18 6:35 ` [PATCH 1/2] soundwire: add definition for maximum number of ports Vinod Koul
2020-08-18 6:53 ` Liao, Bard
2020-08-18 8:31 ` Vinod Koul
2020-08-17 17:47 ` [PATCH 2/2] soundwire: fix port_ready[] dynamic allocation in mipi_disco and ASoC codecs Bard Liao
2020-08-18 6:36 ` Vinod Koul
2020-08-18 12:09 ` Pierre-Louis Bossart
2020-08-18 13:50 ` Pierre-Louis Bossart
2020-08-21 5:15 ` Vinod Koul
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