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From: Adrian Hunter <adrian.hunter@intel.com>
To: alexandre.belloni@bootlin.com
Cc: Frank.Li@nxp.com, billy_tsai@aspeedtech.com,
	linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 14/17] i3c: mipi-i3c-hci: Remove invalid HDR-BT and Fm/Fm+ definitions
Date: Mon, 14 Sep 2026 14:30:00 +0300	[thread overview]
Message-ID: <20260914113003.183150-15-adrian.hunter@intel.com> (raw)
In-Reply-To: <20260914113003.183150-1-adrian.hunter@intel.com>

Several HCI definitions describe capabilities or modes that are not
defined by any released version of the I3C HCI specification.

HC_CAP_HDR_BT_EN uses a reserved HC_CAPABILITIES bit. Similarly,
MODE_I3C_HDR_BT uses a MODE value reserved for I3C transfers, while
MODE_I3C_Fm_FmP cannot be encoded in the 3-bit Command Descriptor MODE
field.

These definitions are currently unused, so there is no functional
change.  Remove them to avoid implying support for non-existent HCI
features and to prevent future misuse.

Assisted-by: GitHub-Copilot:claude-opus-5
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/i3c/master/mipi-i3c-hci/cmd_v1.c | 2 --
 drivers/i3c/master/mipi-i3c-hci/core.c   | 1 -
 2 files changed, 3 deletions(-)

diff --git a/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c b/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c
index 3b9345718d27..9910df53c013 100644
--- a/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c
+++ b/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c
@@ -108,8 +108,6 @@ enum hci_cmd_mode {
 	MODE_I3C_SDR4		= 0x4,
 	MODE_I3C_HDR_TSx	= 0x5,
 	MODE_I3C_HDR_DDR	= 0x6,
-	MODE_I3C_HDR_BT		= 0x7,
-	MODE_I3C_Fm_FmP		= 0x8,
 	MODE_I2C_Fm		= 0x0,
 	MODE_I2C_FmP		= 0x1,
 	MODE_I2C_UD1		= 0x2,
diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
index 4629a16debc9..7a39be64c4e1 100644
--- a/drivers/i3c/master/mipi-i3c-hci/core.c
+++ b/drivers/i3c/master/mipi-i3c-hci/core.c
@@ -55,7 +55,6 @@
 #define HC_CAP_DIRECT_COMMANDS_EN	BIT(18)
 #define HC_CAP_MULTI_LANE_EN		BIT(15)
 #define HC_CAP_CMD_CCC_DEFBYTE		BIT(10)
-#define HC_CAP_HDR_BT_EN		BIT(8)
 #define HC_CAP_HDR_TS_EN		BIT(7)
 #define HC_CAP_HDR_DDR_EN		BIT(6)
 #define HC_CAP_NON_CURRENT_MASTER_CAP	BIT(5)	/* master handoff capable */
-- 
2.53.0


  parent reply	other threads:[~2026-09-14 11:30 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-14 11:29 [PATCH 00/17] i3c: Fixes, cleanups and HDR-DDR support Adrian Hunter
2026-09-14 11:29 ` [PATCH 01/17] i3c: master: Fix out-of-bounds read in DMA bounce buffer setup Adrian Hunter
2026-09-14 16:09   ` Frank Li
2026-09-14 11:29 ` [PATCH 02/17] i3c: mipi-i3c-hci: Bounce short reads irrespective of the IOMMU Adrian Hunter
2026-09-14 16:16   ` Frank Li
2026-09-14 11:29 ` [PATCH 03/17] i3c: mipi-i3c-hci-pci: Set drvdata before creating LTR sysfs attribute Adrian Hunter
2026-09-14 16:17   ` Frank Li
2026-09-14 11:29 ` [PATCH 04/17] i3c: master: Match ACPI targets to the correct bus controller instance Adrian Hunter
2026-09-14 16:19   ` Frank Li
2026-09-14 11:29 ` [PATCH 05/17] i3c: master: Remove stale GETSTATUS length check Adrian Hunter
2026-09-14 16:23   ` Frank Li
2026-09-14 11:29 ` [PATCH 06/17] i3c: mipi-i3c-hci: Fix i3c_hci_enable_ibi() error path Adrian Hunter
2026-09-14 16:27   ` Frank Li
2026-09-14 11:29 ` [PATCH 07/17] i3c: mipi-i3c-hci: Send DISEC before disabling IBIs in hardware Adrian Hunter
2026-09-14 16:29   ` Frank Li
2026-09-14 11:29 ` [PATCH 08/17] i3c: mipi-i3c-hci: Fix runtime PM violation in i3c_hci_free_ibi() Adrian Hunter
2026-09-14 11:29 ` [PATCH 09/17] i3c: mipi-i3c-hci: Process multiple IBIs per interrupt Adrian Hunter
2026-09-14 16:45   ` Frank Li
2026-09-14 11:29 ` [PATCH 10/17] i3c: mipi-i3c-hci: Move DMA suspend/resume callbacks Adrian Hunter
2026-09-14 16:46   ` Frank Li
2026-09-14 11:29 ` [PATCH 11/17] i3c: mipi-i3c-hci: Stop rings gracefully when suspending Adrian Hunter
2026-09-14 16:51   ` Frank Li
2026-09-14 11:29 ` [PATCH 12/17] i3c: mipi-i3c-hci: Fix Response Descriptor DATA_LENGTH mask Adrian Hunter
2026-09-14 16:55   ` Frank Li
2026-09-14 11:29 ` [PATCH 13/17] i3c: mipi-i3c-hci: Remove invalid transfer size limit Adrian Hunter
2026-09-14 16:58   ` Frank Li
2026-09-14 11:30 ` Adrian Hunter [this message]
2026-09-14 17:00   ` [PATCH 14/17] i3c: mipi-i3c-hci: Remove invalid HDR-BT and Fm/Fm+ definitions Frank Li
2026-09-14 11:30 ` [PATCH 15/17] i3c: mipi-i3c-hci: Support configurable device NACK retries Adrian Hunter
2026-09-14 11:30 ` [PATCH 16/17] i3c: Restrict HDR modes to those supported by the bus and target Adrian Hunter
2026-09-14 11:30 ` [PATCH 17/17] i3c: mipi-i3c-hci: Add HDR-DDR support Adrian Hunter

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