From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-i3c@lists.infradead.org,
Jarkko Nikula <jarkko.nikula@linux.intel.com>
Subject: [PATCH 06/12] i3c: mipi-i3c-hci: Set ring start request together with enable
Date: Thu, 21 Sep 2023 08:56:58 +0300 [thread overview]
Message-ID: <20230921055704.1087277-7-jarkko.nikula@linux.intel.com> (raw)
In-Reply-To: <20230921055704.1087277-1-jarkko.nikula@linux.intel.com>
Set ring start request together with ring enable in hci_dma_init(). This
causes the ring abort request in hci_dma_dequeue_xfer() will raise the
INTR_RING_OP (RING_OP_STAT in MIPI I3C HCI specification) interrupt in
the RH_INTR_STATUS register.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
---
drivers/i3c/master/mipi-i3c-hci/dma.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c
index a28ff177022c..df569d1351be 100644
--- a/drivers/i3c/master/mipi-i3c-hci/dma.c
+++ b/drivers/i3c/master/mipi-i3c-hci/dma.c
@@ -325,7 +325,8 @@ static int hci_dma_init(struct i3c_hci *hci)
rh_reg_write(INTR_SIGNAL_ENABLE, regval);
ring_ready:
- rh_reg_write(RING_CONTROL, RING_CTRL_ENABLE);
+ rh_reg_write(RING_CONTROL, RING_CTRL_ENABLE |
+ RING_CTRL_RUN_STOP);
}
regval = FIELD_PREP(MAX_HEADER_COUNT, rings->total);
--
2.40.1
--
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next prev parent reply other threads:[~2023-09-21 5:58 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-21 5:56 [PATCH 00/12] i3c: mipi-i3c-hci: Enabling fixes Jarkko Nikula
2023-09-21 5:56 ` [PATCH 01/12] i3c: master: Inherit DMA masks and parameters from parent device Jarkko Nikula
2023-09-21 5:56 ` [PATCH 02/12] i3c: mipi-i3c-hci: Add MODULE_ALIAS Jarkko Nikula
2023-09-21 5:56 ` [PATCH 03/12] i3c: mipi-i3c-hci: Fix DAT/DCT entry sizes Jarkko Nikula
2023-09-21 5:56 ` [PATCH 04/12] i3c: mipi-i3c-hci: Fix out of bounds access in hci_dma_irq_handler Jarkko Nikula
2023-09-21 5:56 ` [PATCH 05/12] i3c: mipi-i3c-hci: Remove BUG() when Ring Abort request times out Jarkko Nikula
2023-09-21 5:56 ` Jarkko Nikula [this message]
2023-09-21 5:56 ` [PATCH 07/12] i3c: mipi-i3c-hci: Fix race between bus cleanup and interrupt Jarkko Nikula
2023-09-21 5:57 ` [PATCH 08/12] i3c: mipi-i3c-hci: Set number of SW enabled Ring Bundles earlier Jarkko Nikula
2023-09-21 5:57 ` [PATCH 09/12] i3c: mipi-i3c-hci: Do not unmap region not mapped for transfer Jarkko Nikula
2023-09-21 5:57 ` [PATCH 10/12] i3c: mipi-i3c-hci: Fix missing xfer->completion in hci_cmd_v1_daa() Jarkko Nikula
2023-09-21 5:57 ` [PATCH 11/12] i3c: mipi-i3c-hci: Resume controller explicitly Jarkko Nikula
2023-09-21 5:57 ` [PATCH 12/12] i3c: mipi-i3c-hci: Resume controller after aborted transfer Jarkko Nikula
2023-09-25 21:36 ` [PATCH 00/12] i3c: mipi-i3c-hci: Enabling fixes Alexandre Belloni
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