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From: Nicolin Chen <nicoleotsuka@gmail.com>
To: broonie@kernel.org, timur@tabi.org
Cc: caleb@crome.org, mail@maciej.szmigiero.name,
	fabio.estevam@nxp.com, alsa-devel@alsa-project.org,
	linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	lgirdwood@gmail.com, arnaud.mouiche@invoxia.com, lukma@denx.de,
	kernel@pengutronix.de
Subject: [PATCH v6 01/17] ASoC: fsl_ssi: Redefine RX and TX macros
Date: Mon, 12 Feb 2018 14:03:09 -0800	[thread overview]
Message-ID: <1518473005-14090-2-git-send-email-nicoleotsuka@gmail.com> (raw)
In-Reply-To: <1518473005-14090-1-git-send-email-nicoleotsuka@gmail.com>

The RX and TX macros were defined implicitly and there was
a potential risk if someone changes their values.

Since they were defined to index the array ssi->regvals[2],
this patch moves these two macros to fsl_ssi.c, closer to
its owner ssi->regvals. And it also puts some comments here
to limit their value within [0, 1].

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Tested-by: Caleb Crome <caleb@crome.org>
Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
---
 sound/soc/fsl/fsl_ssi.c | 4 ++++
 sound/soc/fsl/fsl_ssi.h | 3 ---
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 24fb672..3c8dd60 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -56,6 +56,10 @@
 #include "fsl_ssi.h"
 #include "imx-pcm.h"
 
+/* Define RX and TX to index ssi->regvals array; Can be 0 or 1 only */
+#define RX 0
+#define TX 1
+
 /**
  * FSLSSI_I2S_FORMATS: audio formats supported by the SSI
  *
diff --git a/sound/soc/fsl/fsl_ssi.h b/sound/soc/fsl/fsl_ssi.h
index de2fdc5..18f8dd5 100644
--- a/sound/soc/fsl/fsl_ssi.h
+++ b/sound/soc/fsl/fsl_ssi.h
@@ -12,9 +12,6 @@
 #ifndef _MPC8610_I2S_H
 #define _MPC8610_I2S_H
 
-#define RX 0
-#define TX 1
-
 /* -- SSI Register Map -- */
 
 /* SSI Transmit Data Register 0 */
-- 
2.1.4

WARNING: multiple messages have this Message-ID (diff)
From: Nicolin Chen <nicoleotsuka@gmail.com>
To: broonie@kernel.org, timur@tabi.org
Cc: mail@maciej.szmigiero.name, kernel@pengutronix.de,
	lgirdwood@gmail.com, alsa-devel@alsa-project.org,
	caleb@crome.org, linux-kernel@vger.kernel.org,
	arnaud.mouiche@invoxia.com, lukma@denx.de, fabio.estevam@nxp.com,
	linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v6 01/17] ASoC: fsl_ssi: Redefine RX and TX macros
Date: Mon, 12 Feb 2018 14:03:09 -0800	[thread overview]
Message-ID: <1518473005-14090-2-git-send-email-nicoleotsuka@gmail.com> (raw)
In-Reply-To: <1518473005-14090-1-git-send-email-nicoleotsuka@gmail.com>

The RX and TX macros were defined implicitly and there was
a potential risk if someone changes their values.

Since they were defined to index the array ssi->regvals[2],
this patch moves these two macros to fsl_ssi.c, closer to
its owner ssi->regvals. And it also puts some comments here
to limit their value within [0, 1].

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Tested-by: Caleb Crome <caleb@crome.org>
Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
---
 sound/soc/fsl/fsl_ssi.c | 4 ++++
 sound/soc/fsl/fsl_ssi.h | 3 ---
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 24fb672..3c8dd60 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -56,6 +56,10 @@
 #include "fsl_ssi.h"
 #include "imx-pcm.h"
 
+/* Define RX and TX to index ssi->regvals array; Can be 0 or 1 only */
+#define RX 0
+#define TX 1
+
 /**
  * FSLSSI_I2S_FORMATS: audio formats supported by the SSI
  *
diff --git a/sound/soc/fsl/fsl_ssi.h b/sound/soc/fsl/fsl_ssi.h
index de2fdc5..18f8dd5 100644
--- a/sound/soc/fsl/fsl_ssi.h
+++ b/sound/soc/fsl/fsl_ssi.h
@@ -12,9 +12,6 @@
 #ifndef _MPC8610_I2S_H
 #define _MPC8610_I2S_H
 
-#define RX 0
-#define TX 1
-
 /* -- SSI Register Map -- */
 
 /* SSI Transmit Data Register 0 */
-- 
2.1.4

  reply	other threads:[~2018-02-12 22:07 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-12 22:03 [PATCH v6 00/17] ASoC: fsl_ssi: Clean up - program flow level Nicolin Chen
2018-02-12 22:03 ` Nicolin Chen [this message]
2018-02-12 22:03   ` [PATCH v6 01/17] ASoC: fsl_ssi: Redefine RX and TX macros Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 02/17] ASoC: fsl_ssi: Keep ssi->i2s_net updated Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 03/17] ASoC: fsl_ssi: Clean up set_dai_tdm_slot() Nicolin Chen
2018-02-12 22:03   ` Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 04/17] ASoC: fsl_ssi: Maintain a mask of active streams Nicolin Chen
2018-02-12 22:03   ` Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 05/17] ASoC: fsl_ssi: Rename fsl_ssi_disable_val macro Nicolin Chen
2018-02-12 22:03   ` Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 06/17] ASoC: fsl_ssi: Clear FIFO directly in fsl_ssi_config() Nicolin Chen
2018-02-12 22:03   ` Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 07/17] ASoC: fsl_ssi: Clean up helper functions of trigger() Nicolin Chen
2018-02-12 22:03   ` Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 08/17] ASoC: fsl_ssi: Add DAIFMT define for AC97 Nicolin Chen
2018-02-12 22:03   ` Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 09/17] ASoC: fsl_ssi: Clean up fsl_ssi_setup_regvals() Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 10/17] ASoC: fsl_ssi: Set xFEN0 and xFEN1 together Nicolin Chen
2018-02-12 22:03   ` Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 11/17] ASoC: fsl_ssi: Use snd_soc_init_dma_data instead Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 12/17] ASoC: fsl_ssi: Move one-time configurations to probe() Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 13/17] ASoC: fsl_ssi: Setup AC97 in fsl_ssi_hw_init() Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 14/17] ASoC: fsl_ssi: Clean up _fsl_ssi_set_dai_fmt() Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 15/17] ASoC: fsl_ssi: Add bool synchronous to mark synchronous mode Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 16/17] ASoC: fsl_ssi: Move DT related code to a separate probe() Nicolin Chen
2018-02-22 13:16   ` Applied "ASoC: fsl_ssi: Move DT related code to a separate probe()" to the asoc tree Mark Brown
2018-02-22 13:16     ` Mark Brown
2018-02-12 22:03 ` [PATCH v6 17/17] ASoC: fsl_ssi: Use ssi->streams instead of reading register Nicolin Chen

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