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[174.29.1.49]) by smtp.gmail.com with ESMTPSA id 5614622812f47-55be9880a99sm909562b6e.14.2026.10.23.00.33.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Oct 2026 00:33:54 -0700 (PDT) From: James Hilliard Date: Fri, 23 Oct 2026 01:33:49 -0600 Subject: [PATCH 1/3] dt-bindings: serial: snps-dw-apb-uart: add Allwinner H616 X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Message-Id: <20261023-submit-h616-uart-fifo-v1-v1-1-e4a3bae2eba8@gmail.com> References: <20261023-submit-h616-uart-fifo-v1-v1-0-e4a3bae2eba8@gmail.com> In-Reply-To: <20261023-submit-h616-uart-fifo-v1-v1-0-e4a3bae2eba8@gmail.com> To: Greg Kroah-Hartman , Jiri Slaby , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andy Shevchenko , =?utf-8?q?Ilpo_J=C3=A4?= =?utf-8?q?rvinen?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, James Hilliard X-Mailer: b4 0.15.2 X-Rspamd-Server: rspamd-worker-8404 X-Spamd-Result: default: False [4.31 / 15.00]; RBL_SENDERSCORE(2.00)[172.105.105.114:from]; SUSPICIOUS_RECIPS(1.50)[]; DMARC_POLICY_SOFTFAIL(1.00)[gmail.com : SPF not aligned (relaxed), No valid DKIM,none]; MAILLIST(-0.18)[generic]; BAD_REP_POLICIES(0.10)[]; MIME_GOOD(-0.10)[text/plain]; HAS_LIST_UNSUB(-0.01)[]; TAGGED_RCPT(0.00)[dt]; FROM_HAS_DN(0.00)[]; ARC_ALLOW(0.00)[subspace.kernel.org:s=arc20261015:i=2]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCPT_COUNT_TWELVE(0.00)[16]; FREEMAIL_CC(0.00)[vger.kernel.org,lists.infradead.org,lists.linux.dev,gmail.com]; DBL_BLOCKED_OPENRESOLVER(0.00)[tor.lore.kernel.org:helo,tor.lore.kernel.org:rdns]; FORGED_SENDER_MAILLIST(0.00)[]; RCVD_COUNT_FIVE(0.00)[6]; TAGGED_FROM(0.00)[bounces-26815-noreply=patchwork.local]; FROM_NEQ_ENVFROM(0.00)[jameshilliard1@gmail.com,linux-sunxi@lists.linux.dev]; FREEMAIL_FROM(0.00)[gmail.com]; R_SPF_ALLOW(0.00)[+ip4:172.105.105.114]; TO_DN_SOME(0.00)[]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[209.85.210.53:received,174.29.1.49:received,100.77.114.92:received]; ASN(0.00)[asn:63949, ipnet:172.105.96.0/20, country:SG]; FREEMAIL_TO(0.00)[linuxfoundation.org,kernel.org,linux.intel.com,gmail.com,sholland.org]; MIME_TRACE(0.00)[0:+]; FORGED_RECIPIENTS_MAILLIST(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[172.105.105.114:from] X-Rspamd-Queue-Id: D5A521C097F X-MORS-Enabled: yes X-MORS-DOMAIN: patchwork.local X-MORS-HOSTING: hosting172546 X-MORS-USER: hosting172546 X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= The Allwinner H616 UART has 256-byte FIFOs but does not implement the DesignWare component parameter register used to discover their size. Add a compatible to identify this integration and its fixed FIFO configuration. Retain snps,dw-apb-uart as a fallback. Signed-off-by: James Hilliard --- Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml index e2ca126d58ba..fc1289073241 100644 --- a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml +++ b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml @@ -60,6 +60,7 @@ properties: - const: renesas,rzn1-uart - items: - enum: + - allwinner,sun50i-h616-uart - anlogic,dr1v90-uart - brcm,bcm11351-dw-apb-uart - brcm,bcm21664-dw-apb-uart