From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: alsa-devel@alsa-project.org
Cc: linux-kernel@vger.kernel.org, tiwai@suse.de, broonie@kernel.org,
vkoul@kernel.org, gregkh@linuxfoundation.org, jank@cadence.com,
srinivas.kandagatla@linaro.org, Blauciak@vger.kernel.org,
Slawomir <slawomir.blauciak@intel.com>,
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
Bard Liao <yung-chuan.liao@linux.intel.com>,
Sanyog Kale <sanyog.r.kale@intel.com>
Subject: [PATCH 03/17] soundwire: cadence_master: revisit interrupt settings
Date: Mon, 5 Aug 2019 19:55:08 -0500 [thread overview]
Message-ID: <20190806005522.22642-4-pierre-louis.bossart@linux.intel.com> (raw)
In-Reply-To: <20190806005522.22642-1-pierre-louis.bossart@linux.intel.com>
Adding missing interrupt masks (parity, etc) and missing checks.
Clarify which masks are for which usage.
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
drivers/soundwire/cadence_master.c | 29 +++++++++++++++++++++++++----
1 file changed, 25 insertions(+), 4 deletions(-)
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
index a1c5f05ef27b..5d9729b4d634 100644
--- a/drivers/soundwire/cadence_master.c
+++ b/drivers/soundwire/cadence_master.c
@@ -76,9 +76,12 @@
#define CDNS_MCP_INT_DPINT BIT(11)
#define CDNS_MCP_INT_CTRL_CLASH BIT(10)
#define CDNS_MCP_INT_DATA_CLASH BIT(9)
+#define CDNS_MCP_INT_PARITY BIT(8)
#define CDNS_MCP_INT_CMD_ERR BIT(7)
+#define CDNS_MCP_INT_RX_NE BIT(3)
#define CDNS_MCP_INT_RX_WL BIT(2)
#define CDNS_MCP_INT_TXE BIT(1)
+#define CDNS_MCP_INT_TXF BIT(0)
#define CDNS_MCP_INTSET 0x4C
@@ -669,6 +672,11 @@ irqreturn_t sdw_cdns_irq(int irq, void *dev_id)
}
}
+ if (int_status & CDNS_MCP_INT_PARITY) {
+ /* Parity error detected by Master */
+ dev_err_ratelimited(cdns->dev, "Parity error\n");
+ }
+
if (int_status & CDNS_MCP_INT_CTRL_CLASH) {
/* Slave is driving bit slot during control word */
dev_err_ratelimited(cdns->dev, "Bus clash for control word\n");
@@ -736,10 +744,23 @@ static int _cdns_enable_interrupt(struct sdw_cdns *cdns)
cdns_writel(cdns, CDNS_MCP_SLAVE_INTMASK1,
CDNS_MCP_SLAVE_INTMASK1_MASK);
- mask = CDNS_MCP_INT_SLAVE_RSVD | CDNS_MCP_INT_SLAVE_ALERT |
- CDNS_MCP_INT_SLAVE_ATTACH | CDNS_MCP_INT_SLAVE_NATTACH |
- CDNS_MCP_INT_CTRL_CLASH | CDNS_MCP_INT_DATA_CLASH |
- CDNS_MCP_INT_RX_WL | CDNS_MCP_INT_IRQ | CDNS_MCP_INT_DPINT;
+ /* enable detection of all slave state changes */
+ mask = CDNS_MCP_INT_SLAVE_MASK;
+
+ /* enable detection of bus issues */
+ mask |= CDNS_MCP_INT_CTRL_CLASH | CDNS_MCP_INT_DATA_CLASH |
+ CDNS_MCP_INT_PARITY;
+
+ /* no detection of port interrupts for now */
+
+ /* enable detection of RX fifo level */
+ mask |= CDNS_MCP_INT_RX_WL;
+
+ /*
+ * CDNS_MCP_INT_IRQ needs to be set otherwise all previous
+ * settings are irrelevant
+ */
+ mask |= CDNS_MCP_INT_IRQ;
cdns_writel(cdns, CDNS_MCP_INTMASK, mask);
--
2.20.1
next prev parent reply other threads:[~2019-08-06 0:55 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-06 0:55 [PATCH 00/17] soundwire: fixes for 5.4 Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 01/17] soundwire: intel: prevent possible dereference in hw_params Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 02/17] soundwire: intel: fix channel number reported by hardware Pierre-Louis Bossart
2019-08-06 0:55 ` Pierre-Louis Bossart [this message]
2019-08-06 0:55 ` [PATCH 04/17] soundwire: bus: improve dynamic debug comments for enumeration Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 05/17] soundwire: export helpers to find row and column values Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 06/17] soundwire: cadence_master: use firmware defaults for frame shape Pierre-Louis Bossart
2019-08-06 15:27 ` Cezary Rojewski
2019-08-06 15:36 ` [alsa-devel] " Pierre-Louis Bossart
2019-08-06 16:06 ` Cezary Rojewski
2019-08-14 4:31 ` Vinod Koul
2019-08-14 14:03 ` Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 07/17] soundwire: include mod_devicetable.h to avoid compiling warnings Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 08/17] soundwire: stream: fix disable sequence Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 09/17] soundwire: stream: remove unnecessary variable initializations Pierre-Louis Bossart
2019-08-06 15:31 ` Cezary Rojewski
2019-08-06 15:39 ` Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 10/17] soundwire: add new mclk_freq field for properties Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 11/17] soundwire: intel: read mclk_freq property from firmware Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 12/17] soundwire: cadence_master: make use of mclk_freq property Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 13/17] soundwire: cadence_master: fix divider setting in clock register Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 14/17] soundwire: intel: handle disabled links Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 15/17] soundwire: intel_init: add kernel module parameter to filter out links Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 16/17] soundwire: cadence_master: add kernel parameter to override interrupt mask Pierre-Louis Bossart
2019-08-06 0:55 ` [PATCH 17/17] soundwire: intel: move shutdown() callback and don't export symbol Pierre-Louis Bossart
2019-08-21 9:07 ` [PATCH 00/17] soundwire: fixes for 5.4 Vinod Koul
2019-08-21 14:03 ` [alsa-devel] " Pierre-Louis Bossart
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